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Diff for /imach/src/imach.c between versions 1.201 and 1.217

-version 1.201, 2015/09/15 17:34:58
+version 1.217, 2015/12/23 17:18:31
  Line 1
  /* $Id$
    $State$
    $Log$
+   Revision 1.217  2015/12/23 17:18:31  brouard
+   Summary: Experimental backcast
+   Revision 1.216  2015/12/18 17:32:11  brouard
+   Summary: 0.98r4 Warning and status=-2
+   Version 0.98r4 is now:
+    - displaying an error when status is -1, date of interview unknown and date of death known;
+    - permitting a status -2 when the vital status is unknown at a known date of right truncation.
+   Older changes concerning s=-2, dating from 2005 have been supersed.
+   Revision 1.215  2015/12/16 08:52:24  brouard
+   Summary: 0.98r4 working
+   Revision 1.214  2015/12/16 06:57:54  brouard
+   Summary: temporary not working
+   Revision 1.213  2015/12/11 18:22:17  brouard
+   Summary: 0.98r4
+   Revision 1.212  2015/11/21 12:47:24  brouard
+   Summary: minor typo
+   Revision 1.211  2015/11/21 12:41:11  brouard
+   Summary: 0.98r3 with some graph of projected cross-sectional
+   Author: Nicolas Brouard
+   Revision 1.210  2015/11/18 17:41:20  brouard
+   Summary: Start working on projected prevalences
+   Revision 1.209  2015/11/17 22:12:03  brouard
+   Summary: Adding ftolpl parameter
+   Author: N Brouard
+   We had difficulties to get smoothed confidence intervals. It was due
+   to the period prevalence which wasn't computed accurately. The inner
+   parameter ftolpl is now an outer parameter of the .imach parameter
+   file after estepm. If ftolpl is small 1.e-4 and estepm too,
+   computation are long.
+   Revision 1.208  2015/11/17 14:31:57  brouard
+   Summary: temporary
+   Revision 1.207  2015/10/27 17:36:57  brouard
+   *** empty log message ***
+   Revision 1.206  2015/10/24 07:14:11  brouard
+   *** empty log message ***
+   Revision 1.205  2015/10/23 15:50:53  brouard
+   Summary: 0.98r3 some clarification for graphs on likelihood contributions
+   Revision 1.204  2015/10/01 16:20:26  brouard
+   Summary: Some new graphs of contribution to likelihood
+   Revision 1.203  2015/09/30 17:45:14  brouard
+   Summary: looking at better estimation of the hessian
+   Also a better criteria for convergence to the period prevalence And
+   therefore adding the number of years needed to converge. (The
+   prevalence in any alive state shold sum to one
+   Revision 1.202  2015/09/22 19:45:16  brouard
+   Summary: Adding some overall graph on contribution to likelihood. Might change
    Revision 1.201  2015/09/15 17:34:58  brouard
    Summary: 0.98r0
- Line 644
+ Line 710
  /* #define DEBUG */
  /* #define DEBUGBRENT */
+ /* #define DEBUGLINMIN */
+ /* #define DEBUGHESS */
+ #define DEBUGHESSIJ
+ /* #define LINMINORIGINAL  /\* Don't use loop on scale in linmin (accepting nan)*\/ */
  #define POWELL /* Instead of NLOPT */
  #define POWELLF1F3 /* Skip test */
  /* #define POWELLORIGINAL /\* Don't use Directest to decide new direction but original Powell test *\/ */
- Line 715  typedef struct {
+ Line 785  typedef struct {
  #define NDEATHMAX 8 /**< Maximum number of dead states (for func) */
  #define NCOVMAX 20 /**< Maximum number of covariates, including generated covariates V1*V2 */
  #define codtabm(h,k)  (1 & (h-1) >> (k-1))+1
+ /*#define decodtabm(h,k,cptcoveff)= (h <= (1<<cptcoveff)?(((h-1) >> (k-1)) & 1) +1 : -1)*/
+ #define decodtabm(h,k,cptcoveff) (((h-1) >> (k-1)) & 1) +1
  #define MAXN 20000
  #define YEARM 12. /**< Number of months per year */
  #define AGESUP 130
- Line 735  typedef struct {
+ Line 807  typedef struct {
  /* $State$ */
  #include "version.h"
  char version[]=__IMACH_VERSION__;
- char copyright[]="September 2015,INED-EUROREVES-Institut de longevite-Japan Society for the Promotion of Science (Grant-in-Aid for Scientific Research 25293121), Intel Software 2015";
+ char copyright[]="October 2015,INED-EUROREVES-Institut de longevite-Japan Society for the Promotion of Science (Grant-in-Aid for Scientific Research 25293121), Intel Software 2015";
  char fullversion[]="$Revision$ $Date$";
  char strstart[80];
  char optionfilext[10], optionfilefiname[FILENAMELENGTH];
- Line 772  double **matprod2(); /* test */
+ Line 844  double **matprod2(); /* test */
  double **oldm, **newm, **savm; /* Working pointers to matrices */
  double **oldms, **newms, **savms; /* Fixed working pointers to matrices */
  /*FILE *fic ; */ /* Used in readdata only */
- FILE *ficpar, *ficparo,*ficres, *ficresp, *ficrespl, *ficrespij, *ficrest,*ficresf,*ficrespop;
+ FILE *ficpar, *ficparo,*ficres, *ficresp, *ficresphtm, *ficresphtmfr, *ficrespl, *ficresplb,*ficrespij, *ficrespijb, *ficrest,*ficresf, *ficresfb,*ficrespop;
  FILE *ficlog, *ficrespow;
  int globpr=0; /* Global variable for printing or not */
  double fretone; /* Only one call to likelihood */
- Line 795  char fileresv[FILENAMELENGTH];
+ Line 867  char fileresv[FILENAMELENGTH];
  FILE  *ficresvpl;
  char fileresvpl[FILENAMELENGTH];
  char title[MAXLINE];
- char optionfile[FILENAMELENGTH], datafile[FILENAMELENGTH],  filerespl[FILENAMELENGTH];
+ char optionfile[FILENAMELENGTH], datafile[FILENAMELENGTH],  filerespl[FILENAMELENGTH],  fileresplb[FILENAMELENGTH];
  char plotcmd[FILENAMELENGTH], pplotcmd[FILENAMELENGTH];
  char tmpout[FILENAMELENGTH],  tmpout2[FILENAMELENGTH];
  char command[FILENAMELENGTH];
  int  outcmd=0;
- char fileres[FILENAMELENGTH], filerespij[FILENAMELENGTH], filereso[FILENAMELENGTH], rfileres[FILENAMELENGTH];
+ char fileres[FILENAMELENGTH], filerespij[FILENAMELENGTH], filerespijb[FILENAMELENGTH], filereso[FILENAMELENGTH], rfileres[FILENAMELENGTH];
- char fileresu[FILENAMELENGTH]; /* Without r in front */
+ char fileresu[FILENAMELENGTH]; /* fileres without r in front */
  char filelog[FILENAMELENGTH]; /* Log file */
  char filerest[FILENAMELENGTH];
  char fileregp[FILENAMELENGTH];
- Line 926  static int split( char *path, char *dirc
+ Line 998  static int split( char *path, char *dirc
      }
      /* got dirc from getcwd*/
      printf(" DIRC = %s \n",dirc);
-   } else {                              /* strip direcotry from path */
+   } else {                              /* strip directory from path */
      ss++;                               /* after this, the filename */
      l2 = strlen( ss );                  /* length of filename */
      if ( l2 == 0 ) return( GLOCK_ERROR_NOPATH );
- Line 1334  char *subdirf3(char fileres[], char *pre
+ Line 1406  char *subdirf3(char fileres[], char *pre
    strcat(tmpout,fileres);
    return tmpout;
  }
+ /*************** function subdirfext ***********/
+ char *subdirfext(char fileres[], char *preop, char *postop)
+ {
+   strcpy(tmpout,preop);
+   strcat(tmpout,fileres);
+   strcat(tmpout,postop);
+   return tmpout;
+ }
+ /*************** function subdirfext3 ***********/
+ char *subdirfext3(char fileres[], char *preop, char *postop)
+ {
+   /* Caution optionfilefiname is hidden */
+   strcpy(tmpout,optionfilefiname);
+   strcat(tmpout,"/");
+   strcat(tmpout,preop);
+   strcat(tmpout,fileres);
+   strcat(tmpout,postop);
+   return tmpout;
+ }
  char *asc_diff_time(long time_sec, char ascdiff[])
  {
    long sec_left, days, hours, minutes;
- Line 1598  void linmin(double p[], double xi[], int
+ Line 1693  void linmin(double p[], double xi[], int
    double xx,xmin,bx,ax;
    double fx,fb,fa;
-   double scale=10., axs, xxs, xxss; /* Scale added for infinity */
+ #ifdef LINMINORIGINAL
+ #else
+   double scale=10., axs, xxs; /* Scale added for infinity */
+ #endif
    ncom=n;
    pcom=vector(1,n);
    xicom=vector(1,n);
    nrfunc=func;
    for (j=1;j<=n;j++) {
      pcom[j]=p[j];
-     xicom[j]=xi[j];
+     xicom[j]=xi[j]; /* Former scale xi[j] of currrent direction i */
    }
-   /* axs=0.0; */
+ #ifdef LINMINORIGINAL
-   /* xxss=1; /\* 1 and using scale *\/ */
+   xx=1.;
-   xxs=1;
+ #else
-   /* do{ */
+   axs=0.0;
-     ax=0.;
+   xxs=1.;
+   do{
      xx= xxs;
+ #endif
+     ax=0.;
      mnbrak(&ax,&xx,&bx,&fa,&fx,&fb,f1dim);  /* Outputs: xtx[j]=pcom[j]+(*xx)*xicom[j]; fx=f(xtx[j]) */
      /* brackets with inputs ax=0 and xx=1, but points, pcom=p, and directions values, xicom=xi, are sent via f1dim(x) */
      /* xt[x,j]=pcom[j]+x*xicom[j]  f(ax) = f(xt(a,j=1,n)) = f(p(j) + 0 * xi(j)) and  f(xx) = f(xt(x, j=1,n)) = f(p(j) + 1 * xi(j))   */
- Line 1622  void linmin(double p[], double xi[], int
+ Line 1723  void linmin(double p[], double xi[], int
      /* Given input ax=axs and xx=xxs, xx might be too far from ax to get a finite f(xx) */
      /* Searches on line, outputs (ax, xx, bx) such that fx < min(fa and fb) */
      /* Find a bracket a,x,b in direction n=xi ie xicom, order may change. Scale is [0:xxs*xi[j]] et non plus  [0:xi[j]]*/
-   /*   if (fx != fx){ */
+ #ifdef LINMINORIGINAL
-   /*    xxs=xxs/scale; /\* Trying a smaller xx, closer to initial ax=0 *\/ */
+ #else
-   /*    printf("\nLinmin NAN : input [axs=%lf:xxs=%lf], mnbrak outputs fx=%lf <(fb=%lf and fa=%lf) with xx=%lf in [ax=%lf:bx=%lf] \n",  axs, xxs, fx,fb, fa, xx, ax, bx); */
+     if (fx != fx){
-   /*   } */
+         xxs=xxs/scale; /* Trying a smaller xx, closer to initial ax=0 */
-   /* }while(fx != fx); */
+         printf("|");
+         fprintf(ficlog,"|");
+ #ifdef DEBUGLINMIN
+         printf("\nLinmin NAN : input [axs=%lf:xxs=%lf], mnbrak outputs fx=%lf <(fb=%lf and fa=%lf) with xx=%lf in [ax=%lf:bx=%lf] \n",  axs, xxs, fx,fb, fa, xx, ax, bx);
+ #endif
+     }
+   }while(fx != fx);
+ #endif
  #ifdef DEBUGLINMIN
    printf("\nLinmin after mnbrak: ax=%12.7f xx=%12.7f bx=%12.7f fa=%12.2f fx=%12.2f fb=%12.2f\n",  ax,xx,bx,fa,fx,fb);
+   fprintf(ficlog,"\nLinmin after mnbrak: ax=%12.7f xx=%12.7f bx=%12.7f fa=%12.2f fx=%12.2f fb=%12.2f\n",  ax,xx,bx,fa,fx,fb);
  #endif
    *fret=brent(ax,xx,bx,f1dim,TOL,&xmin); /* Giving a bracketting triplet (ax, xx, bx), find a minimum, xmin, according to f1dim, *fret(xmin),*/
    /* fa = f(p[j] + ax * xi[j]), fx = f(p[j] + xx * xi[j]), fb = f(p[j] + bx * xi[j]) */
- Line 1642  void linmin(double p[], double xi[], int
+ Line 1751  void linmin(double p[], double xi[], int
  #endif
  #ifdef DEBUGLINMIN
    printf("linmin end ");
+   fprintf(ficlog,"linmin end ");
  #endif
    for (j=1;j<=n;j++) {
-     /* printf(" before xi[%d]=%12.8f", j,xi[j]); */
+ #ifdef LINMINORIGINAL
-     xi[j] *= xmin; /* xi rescaled by xmin: if xmin=-1.237 and xi=(1,0,...,0) xi=(-1.237,0,...,0) */
+     xi[j] *= xmin;
-     /* if(xxs <1.0) */
+ #else
-     /*   printf(" after xi[%d]=%12.8f, xmin=%12.8f, ax=%12.8f, xx=%12.8f, bx=%12.8f, xxs=%12.8f", j,xi[j], xmin, ax, xx, bx,xxs ); */
+ #ifdef DEBUGLINMIN
+     if(xxs <1.0)
+       printf(" before xi[%d]=%12.8f", j,xi[j]);
+ #endif
+     xi[j] *= xmin*xxs; /* xi rescaled by xmin and number of loops: if xmin=-1.237 and xi=(1,0,...,0) xi=(-1.237,0,...,0) */
+ #ifdef DEBUGLINMIN
+     if(xxs <1.0)
+       printf(" after xi[%d]=%12.8f, xmin=%12.8f, ax=%12.8f, xx=%12.8f, bx=%12.8f, xxs=%12.8f", j,xi[j], xmin, ax, xx, bx,xxs );
+ #endif
+ #endif
      p[j] += xi[j]; /* Parameters values are updated accordingly */
    }
-   /* printf("\n"); */
  #ifdef DEBUGLINMIN
+   printf("\n");
    printf("Comparing last *frec(xmin=%12.8f)=%12.8f from Brent and frec(0.)=%12.8f \n", xmin, *fret, (*func)(p));
+   fprintf(ficlog,"Comparing last *frec(xmin=%12.8f)=%12.8f from Brent and frec(0.)=%12.8f \n", xmin, *fret, (*func)(p));
    for (j=1;j<=n;j++) {
-     printf(" xi[%d]= %12.7f p[%d]= %12.7f",j,xi[j],j,p[j]);
+     printf(" xi[%d]= %14.10f p[%d]= %12.7f",j,xi[j],j,p[j]);
-     if(j % ncovmodel == 0)
+     fprintf(ficlog," xi[%d]= %14.10f p[%d]= %12.7f",j,xi[j],j,p[j]);
+     if(j % ncovmodel == 0){
        printf("\n");
+       fprintf(ficlog,"\n");
+     }
    }
+ #else
  #endif
    free_vector(xicom,1,n);
    free_vector(pcom,1,n);
- Line 1691  void powell(double p[], double **xi, int
+ Line 1815  void powell(double p[], double **xi, int
    xits=vector(1,n);
    *fret=(*func)(p);
    for (j=1;j<=n;j++) pt[j]=p[j];
-     rcurr_time = time(NULL);
+   rcurr_time = time(NULL);
    for (*iter=1;;++(*iter)) {
      fp=(*fret); /* From former iteration or initial value */
      ibig=0;
- Line 1735  void powell(double p[], double **xi, int
+ Line 1859  void powell(double p[], double **xi, int
        for (j=1;j<=n;j++) xit[j]=xi[j][i]; /* Directions stored from previous iteration with previous scales */
        fptt=(*fret);
  #ifdef DEBUG
-           printf("fret=%lf, %lf, %lf \n", *fret, *fret, *fret);
+       printf("fret=%lf, %lf, %lf \n", *fret, *fret, *fret);
-           fprintf(ficlog, "fret=%lf, %lf, %lf \n", *fret, *fret, *fret);
+       fprintf(ficlog, "fret=%lf, %lf, %lf \n", *fret, *fret, *fret);
  #endif
-           printf("%d",i);fflush(stdout); /* print direction (parameter) i */
+       printf("%d",i);fflush(stdout); /* print direction (parameter) i */
        fprintf(ficlog,"%d",i);fflush(ficlog);
        linmin(p,xit,n,fret,func); /* Point p[n]. xit[n] has been loaded for direction i as input.*/
                                      /* Outputs are fret(new point p) p is updated and xit rescaled */
- Line 1836  void powell(double p[], double **xi, int
+ Line 1960  void powell(double p[], double **xi, int
        t=2.0*(fp-2.0*(*fret)+fptt)*SQR(fp-(*fret)-del); /* Intel compiler doesn't work on one line; bug reported */
        t= t- del*SQR(fp-fptt);
  #endif
-       directest = fp-2.0*(*fret)+fptt - 2.0 * del; /* If del was big enough we change it for a new direction */
+       directest = fp-2.0*(*fret)+fptt - 2.0 * del; /* If delta was big enough we change it for a new direction */
  #ifdef DEBUG
        printf("t1= %.12lf, t2= %.12lf, t=%.12lf  directest=%.12lf\n", 2.0*(fp-2.0*(*fret)+fptt)*SQR(fp-(*fret)-del),del*SQR(fp-fptt),t,directest);
        fprintf(ficlog,"t1= %.12lf, t2= %.12lf, t=%.12lf directest=%.12lf\n", 2.0*(fp-2.0*(*fret)+fptt)*SQR(fp-(*fret)-del),del*SQR(fp-fptt),t,directest);
- Line 1851  void powell(double p[], double **xi, int
+ Line 1975  void powell(double p[], double **xi, int
        if (t < 0.0) { /* Then we use it for new direction */
  #else
        if (directest*t < 0.0) { /* Contradiction between both tests */
-         printf("directest= %.12lf, t= %.12lf, f1= %.12lf,f2= %.12lf,f3= %.12lf, del= %.12lf\n",directest, t, fp,(*fret),fptt,del);
+         printf("directest= %.12lf (if <0 we include P0 Pn as new direction), t= %.12lf, f1= %.12lf,f2= %.12lf,f3= %.12lf, del= %.12lf\n",directest, t, fp,(*fret),fptt,del);
          printf("f1-2f2+f3= %.12lf, f1-f2-del= %.12lf, f1-f3= %.12lf\n",fp-2.0*(*fret)+fptt, fp -(*fret) -del, fp-fptt);
-         fprintf(ficlog,"directest= %.12lf, t= %.12lf, f1= %.12lf,f2= %.12lf,f3= %.12lf, del= %.12lf\n",directest, t, fp,(*fret),fptt, del);
+         fprintf(ficlog,"directest= %.12lf (if <0 we include P0 Pn as new direction), t= %.12lf, f1= %.12lf,f2= %.12lf,f3= %.12lf, del= %.12lf\n",directest, t, fp,(*fret),fptt, del);
          fprintf(ficlog,"f1-2f2+f3= %.12lf, f1-f2-del= %.12lf, f1-f3= %.12lf\n",fp-2.0*(*fret)+fptt, fp -(*fret) -del, fp-fptt);
        }
        if (directest < 0.0) { /* Then we use it for new direction */
- Line 1861  void powell(double p[], double **xi, int
+ Line 1985  void powell(double p[], double **xi, int
  #ifdef DEBUGLINMIN
          printf("Before linmin in direction P%d-P0\n",n);
          for (j=1;j<=n;j++) {
-           printf("Before xit[%d]= %12.7f p[%d]= %12.7f",j,xit[j],j,p[j]);
+           printf(" Before xit[%d]= %12.7f p[%d]= %12.7f",j,xit[j],j,p[j]);
-           if(j % ncovmodel == 0)
+           fprintf(ficlog," Before xit[%d]= %12.7f p[%d]= %12.7f",j,xit[j],j,p[j]);
+           if(j % ncovmodel == 0){
              printf("\n");
+             fprintf(ficlog,"\n");
+           }
          }
  #endif
          linmin(p,xit,n,fret,func); /* computes minimum on the extrapolated direction: changes p and rescales xit.*/
  #ifdef DEBUGLINMIN
          for (j=1;j<=n;j++) {
            printf("After xit[%d]= %12.7f p[%d]= %12.7f",j,xit[j],j,p[j]);
-           if(j % ncovmodel == 0)
+           fprintf(ficlog,"After xit[%d]= %12.7f p[%d]= %12.7f",j,xit[j],j,p[j]);
+           if(j % ncovmodel == 0){
              printf("\n");
+             fprintf(ficlog,"\n");
+           }
          }
  #endif
          for (j=1;j<=n;j++) {
- Line 1901  void powell(double p[], double **xi, int
+ Line 2031  void powell(double p[], double **xi, int
  /**** Prevalence limit (stable or period prevalence)  ****************/
- double **prevalim(double **prlim, int nlstate, double x[], double age, double **oldm, double **savm, double ftolpl, int ij)
+ double **prevalim(double **prlim, int nlstate, double x[], double age, double **oldm, double **savm, double ftolpl, int *ncvyear, int ij)
  {
    /* Computes the prevalence limit in each live state at age x by left multiplying the unit
-      matrix by transitions matrix until convergence is reached */
+      matrix by transitions matrix until convergence is reached with precision ftolpl */
+   /* Wx= Wx-1 Px-1= Wx-2 Px-2 Px-1  = Wx-n Px-n ... Px-2 Px-1 I */
+   /* Wx is row vector: population in state 1, population in state 2, population dead */
+   /* or prevalence in state 1, prevalence in state 2, 0 */
+   /* newm is the matrix after multiplications, its rows are identical at a factor */
+   /* Initial matrix pimij */
+   /* {0.85204250825084937, 0.13044499163996345, 0.017512500109187184, */
+   /* 0.090851990222114765, 0.88271245433047185, 0.026435555447413338, */
+   /*  0,                   0                  , 1} */
+   /*
+    * and after some iteration: */
+   /* {0.45504275246439968, 0.42731458730878791, 0.11764266022681241, */
+   /*  0.45201005341706885, 0.42865420071559901, 0.11933574586733192, */
+   /*  0,                   0                  , 1} */
+   /* And prevalence by suppressing the deaths are close to identical rows in prlim: */
+   /* {0.51571254859325999, 0.4842874514067399, */
+   /*  0.51326036147820708, 0.48673963852179264} */
+   /* If we start from prlim again, prlim tends to a constant matrix */
    int i, ii,j,k;
-   double min, max, maxmin, maxmax,sumnew=0.;
+   double *min, *max, *meandiff, maxmax,sumnew=0.;
    /* double **matprod2(); */ /* test */
    double **out, cov[NCOVMAX+1], **pmij();
    double **newm;
-   double agefin, delaymax=50 ; /* Max number of years to converge */
+   double agefin, delaymax=200. ; /* 100 Max number of years to converge */
+   int ncvloop=0;
+   min=vector(1,nlstate);
+   max=vector(1,nlstate);
+   meandiff=vector(1,nlstate);
    for (ii=1;ii<=nlstate+ndeath;ii++)
      for (j=1;j<=nlstate+ndeath;j++){
        oldm[ii][j]=(ii==j ? 1.0 : 0.0);
- Line 1921  double **prevalim(double **prlim, int nl
+ Line 2073  double **prevalim(double **prlim, int nl
    cov[1]=1.;
    /* Even if hstepm = 1, at least one multiplication by the unit matrix */
+   /* Start at agefin= age, computes the matrix of passage and loops decreasing agefin until convergence is reached */
    for(agefin=age-stepm/YEARM; agefin>=age-delaymax; agefin=agefin-stepm/YEARM){
+     ncvloop++;
      newm=savm;
      /* Covariates have to be included here again */
      cov[2]=agefin;
- Line 1948  double **prevalim(double **prlim, int nl
+ Line 2102  double **prevalim(double **prlim, int nl
      savm=oldm;
      oldm=newm;
-     maxmax=0.;
-     for(j=1;j<=nlstate;j++){
+     for(j=1; j<=nlstate; j++){
-       min=1.;
+       max[j]=0.;
-       max=0.;
+       min[j]=1.;
-       for(i=1; i<=nlstate; i++) {
+     }
-         sumnew=0;
+     for(i=1;i<=nlstate;i++){
-         for(k=1; k<=ndeath; k++) sumnew+=newm[i][nlstate+k];
+       sumnew=0;
+       for(k=1; k<=ndeath; k++) sumnew+=newm[i][nlstate+k];
+       for(j=1; j<=nlstate; j++){
          prlim[i][j]= newm[i][j]/(1-sumnew);
-         /*printf(" prevalim i=%d, j=%d, prmlim[%d][%d]=%f, agefin=%d \n", i, j, i, j, prlim[i][j],(int)agefin);*/
+         max[j]=FMAX(max[j],prlim[i][j]);
-         max=FMAX(max,prlim[i][j]);
+         min[j]=FMIN(min[j],prlim[i][j]);
-         min=FMIN(min,prlim[i][j]);
        }
-       maxmin=max-min;
+     }
-       maxmax=FMAX(maxmax,maxmin);
+     maxmax=0.;
+     for(j=1; j<=nlstate; j++){
+       meandiff[j]=(max[j]-min[j])/(max[j]+min[j])*2.; /* mean difference for each column */
+       maxmax=FMAX(maxmax,meandiff[j]);
+       /* printf(" age= %d meandiff[%d]=%f, agefin=%d max[%d]=%f min[%d]=%f maxmax=%f\n", (int)age, j, meandiff[j],(int)agefin, j, max[j], j, min[j],maxmax); */
      } /* j loop */
+     *ncvyear= (int)age- (int)agefin;
+     /* printf("maxmax=%lf maxmin=%lf ncvloop=%d, age=%d, agefin=%d ncvyear=%d \n", maxmax, maxmin, ncvloop, (int)age, (int)agefin, *ncvyear); */
      if(maxmax < ftolpl){
+       /* printf("maxmax=%lf ncvloop=%ld, age=%d, agefin=%d ncvyear=%d \n", maxmax, ncvloop, (int)age, (int)agefin, *ncvyear); */
+       free_vector(min,1,nlstate);
+       free_vector(max,1,nlstate);
+       free_vector(meandiff,1,nlstate);
        return prlim;
      }
    } /* age loop */
+     /* After some age loop it doesn't converge */
+   printf("Warning: the stable prevalence at age %d did not converge with the required precision (%g > ftolpl=%g) within %.0f years. Try to lower 'ftolpl'. \n\
+ Earliest age to start was %d-%d=%d, ncvloop=%d, ncvyear=%d\n", (int)age, maxmax, ftolpl, delaymax, (int)age, (int)delaymax, (int)agefin, ncvloop, *ncvyear);
+   /* Try to lower 'ftol', for example from 1.e-8 to 6.e-9.\n", ftolpl, (int)age, (int)delaymax, (int)agefin, ncvloop, (int)age-(int)agefin); */
+   free_vector(min,1,nlstate);
+   free_vector(max,1,nlstate);
+   free_vector(meandiff,1,nlstate);
    return prlim; /* should not reach here */
  }
+  /**** Back Prevalence limit (stable or period prevalence)  ****************/
+ double **bprevalim(double **bprlim, int nlstate, double x[], double age, double **oldm, double **savm, double ftolpl, int *ncvyear, int ij)
+ {
+   /* Computes the prevalence limit in each live state at age x by left multiplying the unit
+      matrix by transitions matrix until convergence is reached with precision ftolpl */
+   /* Wx= Wx-1 Px-1= Wx-2 Px-2 Px-1  = Wx-n Px-n ... Px-2 Px-1 I */
+   /* Wx is row vector: population in state 1, population in state 2, population dead */
+   /* or prevalence in state 1, prevalence in state 2, 0 */
+   /* newm is the matrix after multiplications, its rows are identical at a factor */
+   /* Initial matrix pimij */
+   /* {0.85204250825084937, 0.13044499163996345, 0.017512500109187184, */
+   /* 0.090851990222114765, 0.88271245433047185, 0.026435555447413338, */
+   /*  0,                   0                  , 1} */
+   /*
+    * and after some iteration: */
+   /* {0.45504275246439968, 0.42731458730878791, 0.11764266022681241, */
+   /*  0.45201005341706885, 0.42865420071559901, 0.11933574586733192, */
+   /*  0,                   0                  , 1} */
+   /* And prevalence by suppressing the deaths are close to identical rows in prlim: */
+   /* {0.51571254859325999, 0.4842874514067399, */
+   /*  0.51326036147820708, 0.48673963852179264} */
+   /* If we start from prlim again, prlim tends to a constant matrix */
+   int i, ii,j,k;
+   double *min, *max, *meandiff, maxmax,sumnew=0.;
+   /* double **matprod2(); */ /* test */
+   double **out, cov[NCOVMAX+1], **bmij();
+   double **newm;
+   double agefin, delaymax=200. ; /* 100 Max number of years to converge */
+   int ncvloop=0;
+   min=vector(1,nlstate);
+   max=vector(1,nlstate);
+   meandiff=vector(1,nlstate);
+   for (ii=1;ii<=nlstate+ndeath;ii++)
+     for (j=1;j<=nlstate+ndeath;j++){
+       oldm[ii][j]=(ii==j ? 1.0 : 0.0);
+     }
+   cov[1]=1.;
+   /* Even if hstepm = 1, at least one multiplication by the unit matrix */
+   /* Start at agefin= age, computes the matrix of passage and loops decreasing agefin until convergence is reached */
+   for(agefin=age+stepm/YEARM; agefin<=age+delaymax; agefin=agefin+stepm/YEARM){
+     ncvloop++;
+     newm=savm;
+     /* Covariates have to be included here again */
+     cov[2]=agefin;
+     if(nagesqr==1)
+       cov[3]= agefin*agefin;;
+     for (k=1; k<=cptcovn;k++) {
+       /* cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,Tvar[k])]; */
+       cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,k)];
+       /* printf("prevalim ij=%d k=%d Tvar[%d]=%d nbcode=%d cov=%lf codtabm(%d,Tvar[%d])=%d \n",ij,k, k, Tvar[k],nbcode[Tvar[k]][codtabm(ij,Tvar[k])],cov[2+k], ij, k, codtabm(ij,Tvar[k])]); */
+     }
+     /*wrong? for (k=1; k<=cptcovage;k++) cov[2+Tage[k]]=cov[2+Tage[k]]*cov[2]; */
+     /* for (k=1; k<=cptcovage;k++) cov[2+nagesqr+Tage[k]]=nbcode[Tvar[k]][codtabm(ij,Tvar[k])]*cov[2]; */
+     for (k=1; k<=cptcovage;k++) cov[2+nagesqr+Tage[k]]=nbcode[Tvar[k]][codtabm(ij,k)]*cov[2];
+     for (k=1; k<=cptcovprod;k++) /* Useless */
+       /* cov[2+nagesqr+Tprod[k]]=nbcode[Tvard[k][1]][codtabm(ij,Tvard[k][1])] * nbcode[Tvard[k][2]][codtabm(ij,Tvard[k][2])]; */
+       cov[2+nagesqr+Tprod[k]]=nbcode[Tvard[k][1]][codtabm(ij,k)] * nbcode[Tvard[k][2]][codtabm(ij,k)];
+     /*printf("ij=%d cptcovprod=%d tvar=%d ", ij, cptcovprod, Tvar[1]);*/
+     /*printf("ij=%d cov[3]=%lf cov[4]=%lf \n",ij, cov[3],cov[4]);*/
+     /*printf("ij=%d cov[3]=%lf \n",ij, cov[3]);*/
+     /* savm=pmij(pmmij,cov,ncovmodel,x,nlstate); */
+     /* out=matprod2(newm, pmij(pmmij,cov,ncovmodel,x,nlstate),1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, oldm); /\* Bug Valgrind *\/ */
+     out=matprod2(newm, oldm ,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, bmij(pmmij,cov,ncovmodel,x,nlstate)); /* Bug Valgrind */
+     savm=oldm;
+     oldm=newm;
+     for(j=1; j<=nlstate; j++){
+       max[j]=0.;
+       min[j]=1.;
+     }
+       /* sumnew=0; */
+       /* for(k=1; k<=ndeath; k++) sumnew+=newm[i][nlstate+k]; */
+     for(j=1; j<=nlstate; j++){
+       for(i=1;i<=nlstate;i++){
+         /* bprlim[i][j]= newm[i][j]/(1-sumnew); */
+         bprlim[i][j]= newm[i][j];
+         max[i]=FMAX(max[i],bprlim[i][j]);
+         min[i]=FMIN(min[i],bprlim[i][j]);
+       }
+     }
+     maxmax=0.;
+     for(i=1; i<=nlstate; i++){
+       meandiff[i]=(max[i]-min[i])/(max[i]+min[i])*2.; /* mean difference for each column */
+       maxmax=FMAX(maxmax,meandiff[i]);
+       /* printf("Back age= %d meandiff[%d]=%f, agefin=%d max[%d]=%f min[%d]=%f maxmax=%f\n", (int)age, i, meandiff[i],(int)agefin, i, max[i], i, min[i],maxmax); */
+     } /* j loop */
+     *ncvyear= -( (int)age- (int)agefin);
+     /* printf("Back maxmax=%lf ncvloop=%d, age=%d, agefin=%d ncvyear=%d \n", maxmax, ncvloop, (int)age, (int)agefin, *ncvyear); */
+     if(maxmax < ftolpl){
+       printf("OK Back maxmax=%lf ncvloop=%d, age=%d, agefin=%d ncvyear=%d \n", maxmax, ncvloop, (int)age, (int)agefin, *ncvyear);
+       free_vector(min,1,nlstate);
+       free_vector(max,1,nlstate);
+       free_vector(meandiff,1,nlstate);
+       return bprlim;
+     }
+   } /* age loop */
+     /* After some age loop it doesn't converge */
+   printf("Warning: the back stable prevalence at age %d did not converge with the required precision (%g > ftolpl=%g) within %.0f years. Try to lower 'ftolpl'. \n\
+ Oldest age to start was %d-%d=%d, ncvloop=%d, ncvyear=%d\n", (int)age, maxmax, ftolpl, delaymax, (int)age, (int)delaymax, (int)agefin, ncvloop, *ncvyear);
+   /* Try to lower 'ftol', for example from 1.e-8 to 6.e-9.\n", ftolpl, (int)age, (int)delaymax, (int)agefin, ncvloop, (int)age-(int)agefin); */
+   free_vector(min,1,nlstate);
+   free_vector(max,1,nlstate);
+   free_vector(meandiff,1,nlstate);
+   return bprlim; /* should not reach here */
+ }
  /*************** transition probabilities ***************/
  double **pmij(double **ps, double *cov, int ncovmodel, double *x, int nlstate )
- Line 2052  double **pmij(double **ps, double *cov,
+ Line 2343  double **pmij(double **ps, double *cov,
      return ps;
  }
+ /*************** transition probabilities ***************/
+ double **bmij(double **ps, double *cov, int ncovmodel, double *x, int nlstate )
+ {
+   /* According to parameters values stored in x and the covariate's values stored in cov,
+      computes the probability to be observed in state j being in state i by appying the
+      model to the ncovmodel covariates (including constant and age).
+      lnpijopii=ln(pij/pii)= aij+bij*age+cij*v1+dij*v2+... = sum_nc=1^ncovmodel xij(nc)*cov[nc]
+      and, according on how parameters are entered, the position of the coefficient xij(nc) of the
+      ncth covariate in the global vector x is given by the formula:
+      j<i nc+((i-1)*(nlstate+ndeath-1)+j-1)*ncovmodel
+      j>=i nc + ((i-1)*(nlstate+ndeath-1)+(j-2))*ncovmodel
+      Computes ln(pij/pii) (lnpijopii), deduces pij/pii by exponentiation,
+      sums on j different of i to get 1-pii/pii, deduces pii, and then all pij.
+      Outputs ps[i][j] the probability to be observed in j being in j according to
+      the values of the covariates cov[nc] and corresponding parameter values x[nc+shiftij]
+   */
+   double s1, lnpijopii;
+   /*double t34;*/
+   int i,j, nc, ii, jj;
+     for(i=1; i<= nlstate; i++){
+       for(j=1; j<i;j++){
+         for (nc=1, lnpijopii=0.;nc <=ncovmodel; nc++){
+           /*lnpijopii += param[i][j][nc]*cov[nc];*/
+           lnpijopii += x[nc+((i-1)*(nlstate+ndeath-1)+j-1)*ncovmodel]*cov[nc];
+ /*       printf("Int j<i s1=%.17e, lnpijopii=%.17e\n",s1,lnpijopii); */
+         }
+         ps[i][j]=lnpijopii; /* In fact ln(pij/pii) */
+ /*      printf("s1=%.17e, lnpijopii=%.17e\n",s1,lnpijopii); */
+       }
+       for(j=i+1; j<=nlstate+ndeath;j++){
+         for (nc=1, lnpijopii=0.;nc <=ncovmodel; nc++){
+           /*lnpijopii += x[(i-1)*nlstate*ncovmodel+(j-2)*ncovmodel+nc+(i-1)*(ndeath-1)*ncovmodel]*cov[nc];*/
+           lnpijopii += x[nc + ((i-1)*(nlstate+ndeath-1)+(j-2))*ncovmodel]*cov[nc];
+ /*        printf("Int j>i s1=%.17e, lnpijopii=%.17e %lx %lx\n",s1,lnpijopii,s1,lnpijopii); */
+         }
+         ps[i][j]=lnpijopii; /* In fact ln(pij/pii) */
+       }
+     }
+     for(i=1; i<= nlstate; i++){
+       s1=0;
+       for(j=1; j<i; j++){
+         s1+=exp(ps[i][j]); /* In fact sums pij/pii */
+         /*printf("debug1 %d %d ps=%lf exp(ps)=%lf s1+=%lf\n",i,j,ps[i][j],exp(ps[i][j]),s1); */
+       }
+       for(j=i+1; j<=nlstate+ndeath; j++){
+         s1+=exp(ps[i][j]); /* In fact sums pij/pii */
+         /*printf("debug2 %d %d ps=%lf exp(ps)=%lf s1+=%lf\n",i,j,ps[i][j],exp(ps[i][j]),s1); */
+       }
+       /* s1= sum_{j<>i} pij/pii=(1-pii)/pii and thus pii is known from s1 */
+       ps[i][i]=1./(s1+1.);
+       /* Computing other pijs */
+       for(j=1; j<i; j++)
+         ps[i][j]= exp(ps[i][j])*ps[i][i];
+       for(j=i+1; j<=nlstate+ndeath; j++)
+         ps[i][j]= exp(ps[i][j])*ps[i][i];
+       /* ps[i][nlstate+1]=1.-s1- ps[i][i];*/ /* Sum should be 1 */
+     } /* end i */
+     for(ii=nlstate+1; ii<= nlstate+ndeath; ii++){
+       for(jj=1; jj<= nlstate+ndeath; jj++){
+         ps[ii][jj]=0;
+         ps[ii][ii]=1;
+       }
+     }
+     /* Added for backcast */
+     for(jj=1; jj<= nlstate; jj++){
+       s1=0.;
+       for(ii=1; ii<= nlstate; ii++){
+         s1+=ps[ii][jj];
+       }
+       for(ii=1; ii<= nlstate; ii++){
+         ps[ii][jj]=ps[ii][jj]/s1;
+       }
+     }
+     /* for(ii=1; ii<= nlstate+ndeath; ii++){ */
+     /*   for(jj=1; jj<= nlstate+ndeath; jj++){ */
+     /*  printf(" pmij  ps[%d][%d]=%lf ",ii,jj,ps[ii][jj]); */
+     /*   } */
+     /*   printf("\n "); */
+     /* } */
+     /* printf("\n ");printf("%lf ",cov[2]);*/
+     /*
+       for(i=1; i<= npar; i++) printf("%f ",x[i]);
+       goto end;*/
+     return ps;
+ }
  /**************** Product of 2 matrices ******************/
  double **matprod2(double **out, double **in,int nrl, int nrh, int ncl, int nch, int ncolol, int ncoloh, double **b)
- Line 2092  double ***hpxij(double ***po, int nhstep
+ Line 2475  double ***hpxij(double ***po, int nhstep
    double **out, cov[NCOVMAX+1];
    double **newm;
    double agexact;
+   double agebegin, ageend;
    /* Hstepm could be zero and should return the unit matrix */
    for (i=1;i<=nlstate+ndeath;i++)
- Line 2105  double ***hpxij(double ***po, int nhstep
+ Line 2489  double ***hpxij(double ***po, int nhstep
        newm=savm;
        /* Covariates have to be included here again */
        cov[1]=1.;
-       agexact=age+((h-1)*hstepm + (d-1))*stepm/YEARM;
+       agexact=age+((h-1)*hstepm + (d-1))*stepm/YEARM; /* age just before transition */
        cov[2]=agexact;
        if(nagesqr==1)
          cov[3]= agexact*agexact;
- Line 2125  double ***hpxij(double ***po, int nhstep
+ Line 2509  double ***hpxij(double ***po, int nhstep
        /*printf("h=%d d=%d age=%f cov=%f\n",h,d,age,cov[2]);*/
        out=matprod2(newm,oldm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath,
                     pmij(pmmij,cov,ncovmodel,x,nlstate));
+       /* if((int)age == 70){ */
+       /*        printf(" Forward hpxij age=%d agexact=%f d=%d nhstepm=%d hstepm=%d\n", (int) age, agexact, d, nhstepm, hstepm); */
+       /*        for(i=1; i<=nlstate+ndeath; i++) { */
+       /*          printf("%d pmmij ",i); */
+       /*          for(j=1;j<=nlstate+ndeath;j++) { */
+       /*            printf("%f ",pmmij[i][j]); */
+       /*          } */
+       /*          printf(" oldm "); */
+       /*          for(j=1;j<=nlstate+ndeath;j++) { */
+       /*            printf("%f ",oldm[i][j]); */
+       /*          } */
+       /*          printf("\n"); */
+       /*        } */
+       /* } */
        savm=oldm;
        oldm=newm;
      }
- Line 2139  double ***hpxij(double ***po, int nhstep
+ Line 2537  double ***hpxij(double ***po, int nhstep
    return po;
  }
- #ifdef NLOPT
+ /************* Higher Back Matrix Product ***************/
-   double  myfunc(unsigned n, const double *p1, double *grad, void *pd){
-   double fret;
-   double *xt;
-   int j;
-   myfunc_data *d2 = (myfunc_data *) pd;
- /* xt = (p1-1); */
-   xt=vector(1,n);
-   for (j=1;j<=n;j++)   xt[j]=p1[j-1]; /* xt[1]=p1[0] */
-   fret=(d2->function)(xt); /*  p xt[1]@8 is fine */
-   /* fret=(*func)(xt); /\*  p xt[1]@8 is fine *\/ */
-   printf("Function = %.12lf ",fret);
-   for (j=1;j<=n;j++) printf(" %d %.8lf", j, xt[j]);
-   printf("\n");
-  free_vector(xt,1,n);
-   return fret;
- }
- #endif
- /*************** log-likelihood *************/
+ double ***hbxij(double ***po, int nhstepm, double age, int hstepm, double *x, int nlstate, int stepm, double **oldm, double **savm, int ij )
- double func( double *x)
  {
-   int i, ii, j, k, mi, d, kk;
+   /* Computes the transition matrix starting at age 'age' over
-   double l, ll[NLSTATEMAX+1], cov[NCOVMAX+1];
+      'nhstepm*hstepm*stepm' months (i.e. until
-   double **out;
+      age (in years)  age+nhstepm*hstepm*stepm/12) by multiplying
-   double sw; /* Sum of weights */
+      nhstepm*hstepm matrices.
-   double lli; /* Individual log likelihood */
+      Output is stored in matrix po[i][j][h] for h every 'hstepm' step
-   int s1, s2;
+      (typically every 2 years instead of every month which is too big
-   double bbh, survp;
+      for the memory).
-   long ipmx;
+      Model is determined by parameters x and covariates have to be
-   double agexact;
+      included manually here.
-   /*extern weight */
-   /* We are differentiating ll according to initial status */
+      */
-   /*  for (i=1;i<=npar;i++) printf("%f ", x[i]);*/
-   /*for(i=1;i<imx;i++)
+   int i, j, d, h, k;
-     printf(" %d\n",s[4][i]);
+   double **out, cov[NCOVMAX+1];
-   */
+   double **newm;
+   double agexact;
-   ++countcallfunc;
+   double agebegin, ageend;
+   /* Hstepm could be zero and should return the unit matrix */
+   for (i=1;i<=nlstate+ndeath;i++)
+     for (j=1;j<=nlstate+ndeath;j++){
+       oldm[i][j]=(i==j ? 1.0 : 0.0);
+       po[i][j][0]=(i==j ? 1.0 : 0.0);
+     }
+   /* Even if hstepm = 1, at least one multiplication by the unit matrix */
+   for(h=1; h <=nhstepm; h++){
+     for(d=1; d <=hstepm; d++){
+       newm=savm;
+       /* Covariates have to be included here again */
+       cov[1]=1.;
+       agexact=age-((h-1)*hstepm + (d-1))*stepm/YEARM; /* age just before transition */
+       /* agexact=age+((h-1)*hstepm + (d-1))*stepm/YEARM; /\* age just before transition *\/ */
+       cov[2]=agexact;
+       if(nagesqr==1)
+         cov[3]= agexact*agexact;
+       for (k=1; k<=cptcovn;k++)
+         cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,k)];
+         /* cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,Tvar[k])]; */
+       for (k=1; k<=cptcovage;k++) /* Should start at cptcovn+1 */
+         /* cov[2+Tage[k]]=cov[2+Tage[k]]*cov[2]; */
+         cov[2+nagesqr+Tage[k]]=nbcode[Tvar[Tage[k]]][codtabm(ij,k)]*cov[2];
+         /* cov[2+nagesqr+Tage[k]]=nbcode[Tvar[Tage[k]]][codtabm(ij,Tvar[Tage[k]])]*cov[2]; */
+       for (k=1; k<=cptcovprod;k++) /* Useless because included in cptcovn */
+         cov[2+nagesqr+Tprod[k]]=nbcode[Tvard[k][1]][codtabm(ij,k)]*nbcode[Tvard[k][2]][codtabm(ij,k)];
+         /* cov[2+nagesqr+Tprod[k]]=nbcode[Tvard[k][1]][codtabm(ij,Tvard[k][1])]*nbcode[Tvard[k][2]][codtabm(ij,Tvard[k][2])]; */
+       /*printf("hxi cptcov=%d cptcode=%d\n",cptcov,cptcode);*/
+       /*printf("h=%d d=%d age=%f cov=%f\n",h,d,age,cov[2]);*/
+       out=matprod2(newm, bmij(pmmij,cov,ncovmodel,x,nlstate),1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath,
+                   oldm);
+       /* if((int)age == 70){ */
+       /*        printf(" Backward hbxij age=%d agexact=%f d=%d nhstepm=%d hstepm=%d\n", (int) age, agexact, d, nhstepm, hstepm); */
+       /*        for(i=1; i<=nlstate+ndeath; i++) { */
+       /*          printf("%d pmmij ",i); */
+       /*          for(j=1;j<=nlstate+ndeath;j++) { */
+       /*            printf("%f ",pmmij[i][j]); */
+       /*          } */
+       /*          printf(" oldm "); */
+       /*          for(j=1;j<=nlstate+ndeath;j++) { */
+       /*            printf("%f ",oldm[i][j]); */
+       /*          } */
+       /*          printf("\n"); */
+       /*        } */
+       /* } */
+       savm=oldm;
+       oldm=newm;
+     }
+     for(i=1; i<=nlstate+ndeath; i++)
+       for(j=1;j<=nlstate+ndeath;j++) {
+         po[i][j][h]=newm[i][j];
+         /*if(h==nhstepm) printf("po[%d][%d][%d]=%f ",i,j,h,po[i][j][h]);*/
+       }
+     /*printf("h=%d ",h);*/
+   } /* end h */
+ /*     printf("\n H=%d \n",h); */
+   return po;
+ }
+ #ifdef NLOPT
+   double  myfunc(unsigned n, const double *p1, double *grad, void *pd){
+   double fret;
+   double *xt;
+   int j;
+   myfunc_data *d2 = (myfunc_data *) pd;
+ /* xt = (p1-1); */
+   xt=vector(1,n);
+   for (j=1;j<=n;j++)   xt[j]=p1[j-1]; /* xt[1]=p1[0] */
+   fret=(d2->function)(xt); /*  p xt[1]@8 is fine */
+   /* fret=(*func)(xt); /\*  p xt[1]@8 is fine *\/ */
+   printf("Function = %.12lf ",fret);
+   for (j=1;j<=n;j++) printf(" %d %.8lf", j, xt[j]);
+   printf("\n");
+  free_vector(xt,1,n);
+   return fret;
+ }
+ #endif
+ /*************** log-likelihood *************/
+ double func( double *x)
+ {
+   int i, ii, j, k, mi, d, kk;
+   double l, ll[NLSTATEMAX+1], cov[NCOVMAX+1];
+   double **out;
+   double sw; /* Sum of weights */
+   double lli; /* Individual log likelihood */
+   int s1, s2;
+   double bbh, survp;
+   long ipmx;
+   double agexact;
+   /*extern weight */
+   /* We are differentiating ll according to initial status */
+   /*  for (i=1;i<=npar;i++) printf("%f ", x[i]);*/
+   /*for(i=1;i<imx;i++)
+     printf(" %d\n",s[4][i]);
+   */
+   ++countcallfunc;
    cov[1]=1.;
- Line 2282  double func( double *x)
+ Line 2764  double func( double *x)
  /*        else */
  /*          lli=log(out[s1][s2] - savm[s1][s2]); */
  /* #endif */
-             lli=log(out[s1][s2] - savm[s1][s2]);
+           lli=log(out[s1][s2] - savm[s1][s2]);
-         } else if  (s2==-2) {
+         } else if  ( s2==-1 ) { /* alive */
            for (j=1,survp=0. ; j<=nlstate; j++)
              survp += (1.+bbh)*out[s1][j]- bbh*savm[s1][j];
            /*survp += out[s1][j]; */
            lli= log(survp);
          }
          else if  (s2==-4) {
            for (j=3,survp=0. ; j<=nlstate; j++)
              survp += (1.+bbh)*out[s1][j]- bbh*savm[s1][j];
            lli= log(survp);
          }
          else if  (s2==-5) {
            for (j=1,survp=0. ; j<=2; j++)
              survp += (1.+bbh)*out[s1][j]- bbh*savm[s1][j];
            lli= log(survp);
          }
          else{
            lli= log((1.+bbh)*out[s1][s2]- bbh*savm[s1][s2]); /* linear interpolation */
            /*  lli= (savm[s1][s2]>(double)1.e-8 ?log((1.+bbh)*out[s1][s2]- bbh*(savm[s1][s2])):log((1.+bbh)*out[s1][s2]));*/ /* linear interpolation */
- Line 2414  double func( double *x)
+ Line 2893  double func( double *x)
          s2=s[mw[mi+1][i]][i];
          if( s2 > nlstate){
            lli=log(out[s1][s2] - savm[s1][s2]);
+         } else if  ( s2==-1 ) { /* alive */
+           for (j=1,survp=0. ; j<=nlstate; j++)
+             survp += out[s1][j];
+           lli= log(survp);
          }else{
            lli=log(out[s[mw[mi][i]][i]][s[mw[mi+1][i]][i]]); /* Original formula */
          }
- Line 2476  double funcone( double *x)
+ Line 2959  double funcone( double *x)
    int s1, s2;
    double bbh, survp;
    double agexact;
+   double agebegin, ageend;
    /*extern weight */
    /* We are differentiating ll according to initial status */
    /*  for (i=1;i<=npar;i++) printf("%f ", x[i]);*/
- Line 2494  double funcone( double *x)
+ Line 2978  double funcone( double *x)
            oldm[ii][j]=(ii==j ? 1.0 : 0.0);
            savm[ii][j]=(ii==j ? 1.0 : 0.0);
          }
-       for(d=0; d<dh[mi][i]; d++){
+       agebegin=agev[mw[mi][i]][i]; /* Age at beginning of effective wave */
+       ageend=agev[mw[mi][i]][i] + (dh[mi][i])*stepm/YEARM; /* Age at end of effective wave and at the end of transition */
+       for(d=0; d<dh[mi][i]; d++){  /* Delay between two effective waves */
+         /*dh[m][i] or dh[mw[mi][i]][i] is the delay between two effective waves m=mw[mi][i]
+           and mw[mi+1][i]. dh depends on stepm.*/
          newm=savm;
          agexact=agev[mw[mi][i]][i]+d*stepm/YEARM;
          cov[2]=agexact;
- Line 2515  double funcone( double *x)
+ Line 3004  double funcone( double *x)
        s1=s[mw[mi][i]][i];
        s2=s[mw[mi+1][i]][i];
+       /* if(s2==-1){ */
+       /*        printf(" s1=%d, s2=%d i=%d \n", s1, s2, i); */
+       /*        /\* exit(1); *\/ */
+       /* } */
        bbh=(double)bh[mi][i]/(double)stepm;
        /* bias is positive if real duration
         * is higher than the multiple of stepm and negative otherwise.
         */
        if( s2 > nlstate && (mle <5) ){  /* Jackson */
          lli=log(out[s1][s2] - savm[s1][s2]);
-       } else if  (s2==-2) {
+       } else if  ( s2==-1 ) { /* alive */
          for (j=1,survp=0. ; j<=nlstate; j++)
            survp += (1.+bbh)*out[s1][j]- bbh*savm[s1][j];
          lli= log(survp);
- Line 2542  double funcone( double *x)
+ Line 3035  double funcone( double *x)
        ll[s[mw[mi][i]][i]] += 2*weight[i]*lli;
        /*printf("i=%6d s1=%1d s2=%1d mi=%1d mw=%1d dh=%3d prob=%10.6f w=%6.4f out=%10.6f sav=%10.6f\n",i,s1,s2,mi,mw[mi][i],dh[mi][i],exp(lli),weight[i],out[s1][s2],savm[s1][s2]); */
        if(globpr){
-         fprintf(ficresilk,"%9ld %6d %2d %2d %1d %1d %3d %11.6f %8.4f\
+         fprintf(ficresilk,"%9ld %6.1f %6.1f %6d %2d %2d %2d %2d %3d %11.6f %8.4f %8.3f\
   %11.6f %11.6f %11.6f ", \
-                 num[i],i,s1,s2,mi,mw[mi][i],dh[mi][i],exp(lli),weight[i],
+                 num[i], agebegin, ageend, i,s1,s2,mi,mw[mi][i],dh[mi][i],exp(lli),weight[i],weight[i]*gipmx/gsw,
 *weight[i]*lli,out[s1][s2],savm[s1][s2]);
          for(k=1,llt=0.,l=0.; k<=nlstate; k++){
            llt +=ll[k]*gipmx/gsw;
- Line 2577  void likelione(FILE *ficres,double p[],
+ Line 3070  void likelione(FILE *ficres,double p[],
    if(*globpri !=0){ /* Just counts and sums, no printings */
      strcpy(fileresilk,"ILK_");
-     strcat(fileresilk,fileres);
+     strcat(fileresilk,fileresu);
      if((ficresilk=fopen(fileresilk,"w"))==NULL) {
        printf("Problem with resultfile: %s\n", fileresilk);
        fprintf(ficlog,"Problem with resultfile: %s\n", fileresilk);
      }
-     fprintf(ficresilk, "#individual(line's_record) s1 s2 wave# effective_wave# number_of_matrices_product pij weight -2ln(pij)*weight 0pij_x 0pij_(x-stepm) cumulating_loglikeli_by_health_state(reweighted=-2ll*weightXnumber_of_contribs/sum_of_weights) and_total\n");
+     fprintf(ficresilk, "#individual(line's_record) count ageb ageend s1 s2 wave# effective_wave# number_of_matrices_product pij weight weight/gpw -2ln(pij)*weight 0pij_x 0pij_(x-stepm) cumulating_loglikeli_by_health_state(reweighted=-2ll*weightXnumber_of_contribs/sum_of_weights) and_total\n");
-     fprintf(ficresilk, "#num_i i s1 s2 mi mw dh likeli weight 2wlli out sav ");
+     fprintf(ficresilk, "#num_i ageb agend i s1 s2 mi mw dh likeli weight %%weight 2wlli out sav ");
      /*  i,s1,s2,mi,mw[mi][i],dh[mi][i],exp(lli),weight[i],2*weight[i]*lli,out[s1][s2],savm[s1][s2]); */
      for(k=1; k<=nlstate; k++)
        fprintf(ficresilk," -2*gipw/gsw*weight*ll[%d]++",k);
- Line 2593  void likelione(FILE *ficres,double p[],
+ Line 3086  void likelione(FILE *ficres,double p[],
    *fretone=(*funcone)(p);
    if(*globpri !=0){
      fclose(ficresilk);
-     fprintf(fichtm,"\n<br>File of contributions to the likelihood (if mle=1): <a href=\"%s\">%s</a><br>\n",subdirf(fileresilk),subdirf(fileresilk));
+     if (mle ==0)
-     fflush(fichtm);
+       fprintf(fichtm,"\n<br>File of contributions to the likelihood computed with initial parameters and mle = %d.",mle);
-   }
+     else if(mle >=1)
+       fprintf(fichtm,"\n<br>File of contributions to the likelihood computed with optimized parameters mle = %d.",mle);
+     fprintf(fichtm," You should at least run with mle >= 1 to get starting values corresponding to the optimized parameters in order to visualize the real contribution of each individual/wave: <a href=\"%s\">%s</a><br>\n",subdirf(fileresilk),subdirf(fileresilk));
+     for (k=1; k<= nlstate ; k++) {
+       fprintf(fichtm,"<br>- Probability p<sub>%dj</sub> by origin %d and destination j. Dot's sizes are related to corresponding weight: <a href=\"%s-p%dj.png\">%s-p%dj.png</a><br> \
+ <img src=\"%s-p%dj.png\">",k,k,subdirf2(optionfilefiname,"ILK_"),k,subdirf2(optionfilefiname,"ILK_"),k,subdirf2(optionfilefiname,"ILK_"),k);
+     }
+     fprintf(fichtm,"<br>- The function drawn is -2Log(L) in Log scale: by state of origin <a href=\"%s-ori.png\">%s-ori.png</a><br> \
+ <img src=\"%s-ori.png\">",subdirf2(optionfilefiname,"ILK_"),subdirf2(optionfilefiname,"ILK_"),subdirf2(optionfilefiname,"ILK_"));
+     fprintf(fichtm,"<br>- and by state of destination <a href=\"%s-dest.png\">%s-dest.png</a><br> \
+ <img src=\"%s-dest.png\">",subdirf2(optionfilefiname,"ILK_"),subdirf2(optionfilefiname,"ILK_"),subdirf2(optionfilefiname,"ILK_"));
+     fflush(fichtm);
+   }
    return;
  }
- Line 2669  void mlikeli(FILE *ficres,double p[], in
+ Line 3176  void mlikeli(FILE *ficres,double p[], in
  #endif
    free_matrix(xi,1,npar,1,npar);
    fclose(ficrespow);
-   printf("#Number of iterations & function calls = %d & %d, -2 Log likelihood = %.12f\n",iter, countcallfunc,func(p));
+   printf("\n#Number of iterations & function calls = %d & %d, -2 Log likelihood = %.12f\n",iter, countcallfunc,func(p));
-   fprintf(ficlog,"#Number of iterations & function calls = %d & %d, -2 Log likelihood = %.12f\n",iter, countcallfunc,func(p));
+   fprintf(ficlog,"\n#Number of iterations & function calls = %d & %d, -2 Log likelihood = %.12f\n",iter, countcallfunc,func(p));
    fprintf(ficres,"#Number of iterations & function calls = %d & %d, -2 Log likelihood = %.12f\n",iter, countcallfunc,func(p));
  }
  /**** Computes Hessian and covariance matrix ***/
- void hesscov(double **matcov, double p[], int npar, double delti[], double ftolhess, double (*func)(double []))
+ void hesscov(double **matcov, double **hess, double p[], int npar, double delti[], double ftolhess, double (*func)(double []))
  {
    double  **a,**y,*x,pd;
-   double **hess;
+   /* double **hess; */
    int i, j;
    int *indx;
    double hessii(double p[], double delta, int theta, double delti[],double (*func)(double []),int npar);
-   double hessij(double p[], double delti[], int i, int j,double (*func)(double []),int npar);
+   double hessij(double p[], double **hess, double delti[], int i, int j,double (*func)(double []),int npar);
    void lubksb(double **a, int npar, int *indx, double b[]) ;
    void ludcmp(double **a, int npar, int *indx, double *d) ;
    double gompertz(double p[]);
-   hess=matrix(1,npar,1,npar);
+   /* hess=matrix(1,npar,1,npar); */
    printf("\nCalculation of the hessian matrix. Wait...\n");
    fprintf(ficlog,"\nCalculation of the hessian matrix. Wait...\n");
    for (i=1;i<=npar;i++){
-     printf("%d",i);fflush(stdout);
+     printf("%d-",i);fflush(stdout);
-     fprintf(ficlog,"%d",i);fflush(ficlog);
+     fprintf(ficlog,"%d-",i);fflush(ficlog);
       hess[i][i]=hessii(p,ftolhess,i,delti,func,npar);
- Line 2705  void hesscov(double **matcov, double p[]
+ Line 3212  void hesscov(double **matcov, double p[]
    for (i=1;i<=npar;i++) {
      for (j=1;j<=npar;j++)  {
        if (j>i) {
-         printf(".%d%d",i,j);fflush(stdout);
+         printf(".%d-%d",i,j);fflush(stdout);
-         fprintf(ficlog,".%d%d",i,j);fflush(ficlog);
+         fprintf(ficlog,".%d-%d",i,j);fflush(ficlog);
-         hess[i][j]=hessij(p,delti,i,j,func,npar);
+         hess[i][j]=hessij(p,hess, delti,i,j,func,npar);
          hess[j][i]=hess[i][j];
          /*printf(" %lf ",hess[i][j]);*/
- Line 2741  void hesscov(double **matcov, double p[]
+ Line 3248  void hesscov(double **matcov, double p[]
    fprintf(ficlog,"\n#Hessian matrix#\n");
    for (i=1;i<=npar;i++) {
      for (j=1;j<=npar;j++) {
-       printf("%.3e ",hess[i][j]);
+       printf("%.6e ",hess[i][j]);
-       fprintf(ficlog,"%.3e ",hess[i][j]);
+       fprintf(ficlog,"%.6e ",hess[i][j]);
      }
      printf("\n");
      fprintf(ficlog,"\n");
    }
+   /* printf("\n#Covariance matrix#\n"); */
+   /* fprintf(ficlog,"\n#Covariance matrix#\n"); */
+   /* for (i=1;i<=npar;i++) {  */
+   /*   for (j=1;j<=npar;j++) {  */
+   /*     printf("%.6e ",matcov[i][j]); */
+   /*     fprintf(ficlog,"%.6e ",matcov[i][j]); */
+   /*   } */
+   /*   printf("\n"); */
+   /*   fprintf(ficlog,"\n"); */
+   /* } */
    /* Recompute Inverse */
-   for (i=1;i<=npar;i++)
+   /* for (i=1;i<=npar;i++) */
-     for (j=1;j<=npar;j++) a[i][j]=matcov[i][j];
+   /*   for (j=1;j<=npar;j++) a[i][j]=matcov[i][j]; */
-   ludcmp(a,npar,indx,&pd);
+   /* ludcmp(a,npar,indx,&pd); */
+   /*  printf("\n#Hessian matrix recomputed#\n"); */
+   /* for (j=1;j<=npar;j++) { */
+   /*   for (i=1;i<=npar;i++) x[i]=0; */
+   /*   x[j]=1; */
+   /*   lubksb(a,npar,indx,x); */
+   /*   for (i=1;i<=npar;i++){  */
+   /*     y[i][j]=x[i]; */
+   /*     printf("%.3e ",y[i][j]); */
+   /*     fprintf(ficlog,"%.3e ",y[i][j]); */
+   /*   } */
+   /*   printf("\n"); */
+   /*   fprintf(ficlog,"\n"); */
+   /* } */
-   /*  printf("\n#Hessian matrix recomputed#\n");
+   /* Verifying the inverse matrix */
+ #ifdef DEBUGHESS
+   y=matprod2(y,hess,1,npar,1,npar,1,npar,matcov);
+    printf("\n#Verification: multiplying the matrix of covariance by the Hessian matrix, should be unity:#\n");
+    fprintf(ficlog,"\n#Verification: multiplying the matrix of covariance by the Hessian matrix. Should be unity:#\n");
    for (j=1;j<=npar;j++) {
-     for (i=1;i<=npar;i++) x[i]=0;
-     x[j]=1;
-     lubksb(a,npar,indx,x);
      for (i=1;i<=npar;i++){
-       y[i][j]=x[i];
+       printf("%.2f ",y[i][j]);
-       printf("%.3e ",y[i][j]);
+       fprintf(ficlog,"%.2f ",y[i][j]);
-       fprintf(ficlog,"%.3e ",y[i][j]);
      }
      printf("\n");
      fprintf(ficlog,"\n");
    }
-   */
+ #endif
    free_matrix(a,1,npar,1,npar);
    free_matrix(y,1,npar,1,npar);
    free_vector(x,1,npar);
    free_ivector(indx,1,npar);
-   free_matrix(hess,1,npar,1,npar);
+   /* free_matrix(hess,1,npar,1,npar); */
  }
  /*************** hessian matrix ****************/
  double hessii(double x[], double delta, int theta, double delti[], double (*func)(double []), int npar)
- {
+ { /* Around values of x, computes the function func and returns the scales delti and hessian */
    int i;
    int l=1, lmax=20;
-   double k1,k2;
+   double k1,k2, res, fx;
    double p2[MAXPARM+1]; /* identical to x */
-   double res;
    double delt=0.0001, delts, nkhi=10.,nkhif=1., khi=1.e-4;
-   double fx;
    int k=0,kmax=10;
    double l1;
- Line 2803  double hessii(double x[], double delta,
+ Line 3335  double hessii(double x[], double delta,
        p2[theta]=x[theta]-delt;
        k2=func(p2)-fx;
        /*res= (k1-2.0*fx+k2)/delt/delt; */
-       res= (k1+k2)/delt/delt/2.; /* Divided by because L and not 2*L */
+       res= (k1+k2)/delt/delt/2.; /* Divided by 2 because L and not 2*L */
- #ifdef DEBUGHESS
+ #ifdef DEBUGHESSII
        printf("%d %d k1=%.12e k2=%.12e xk1=%.12e xk2=%.12e delt=%.12e res=%.12e l=%d k=%d,fx=%.12e\n",theta,theta,k1,k2,x[theta]+delt,x[theta]-delt,delt,res, l, k,fx);
        fprintf(ficlog,"%d %d k1=%.12e k2=%.12e xk1=%.12e xk2=%.12e delt=%.12e res=%.12e l=%d k=%d,fx=%.12e\n",theta,theta,k1,k2,x[theta]+delt,x[theta]-delt,delt,res, l, k,fx);
  #endif
- Line 2819  double hessii(double x[], double delta,
+ Line 3351  double hessii(double x[], double delta,
        else if((k1 >khi/nkhi) || (k2 >khi/nkhi)){
          delts=delt;
        }
-     }
+     } /* End loop k */
    }
    delti[theta]=delts;
    return res;
  }
- double hessij( double x[], double delti[], int thetai,int thetaj,double (*func)(double []),int npar)
+ double hessij( double x[], double **hess, double delti[], int thetai,int thetaj,double (*func)(double []),int npar)
  {
    int i;
    int l=1, lmax=20;
    double k1,k2,k3,k4,res,fx;
    double p2[MAXPARM+1];
-   int k;
+   int k, kmax=1;
+   double v1, v2, cv12, lc1, lc2;
+   int firstime=0;
    fx=func(x);
-   for (k=1; k<=2; k++) {
+   for (k=1; k<=kmax; k=k+10) {
      for (i=1;i<=npar;i++) p2[i]=x[i];
-     p2[thetai]=x[thetai]+delti[thetai]/k;
+     p2[thetai]=x[thetai]+delti[thetai]*k;
-     p2[thetaj]=x[thetaj]+delti[thetaj]/k;
+     p2[thetaj]=x[thetaj]+delti[thetaj]*k;
      k1=func(p2)-fx;
-     p2[thetai]=x[thetai]+delti[thetai]/k;
+     p2[thetai]=x[thetai]+delti[thetai]*k;
-     p2[thetaj]=x[thetaj]-delti[thetaj]/k;
+     p2[thetaj]=x[thetaj]-delti[thetaj]*k;
      k2=func(p2)-fx;
-     p2[thetai]=x[thetai]-delti[thetai]/k;
+     p2[thetai]=x[thetai]-delti[thetai]*k;
-     p2[thetaj]=x[thetaj]+delti[thetaj]/k;
+     p2[thetaj]=x[thetaj]+delti[thetaj]*k;
      k3=func(p2)-fx;
-     p2[thetai]=x[thetai]-delti[thetai]/k;
+     p2[thetai]=x[thetai]-delti[thetai]*k;
-     p2[thetaj]=x[thetaj]-delti[thetaj]/k;
+     p2[thetaj]=x[thetaj]-delti[thetaj]*k;
      k4=func(p2)-fx;
-     res=(k1-k2-k3+k4)/4.0/delti[thetai]*k/delti[thetaj]*k/2.; /* Because of L not 2*L */
+     res=(k1-k2-k3+k4)/4.0/delti[thetai]/k/delti[thetaj]/k/2.; /* Because of L not 2*L */
- #ifdef DEBUG
+     if(k1*k2*k3*k4 <0.){
-     printf("%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti/k=%.12e deltj/k=%.12e, xi-de/k=%.12e xj-de/k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4);
+       firstime=1;
-     fprintf(ficlog,"%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti/k=%.12e deltj/k=%.12e, xi-de/k=%.12e xj-de/k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4);
+       kmax=kmax+10;
+     }
+     if(kmax >=10 || firstime ==1){
+       printf("Warning: directions %d-%d, you are not estimating the Hessian at the exact maximum likelihood; increase ftol=%.2e\n",thetai,thetaj, ftol);
+       fprintf(ficlog,"Warning: directions %d-%d, you are not estimating the Hessian at the exact maximum likelihood; increase ftol=%.2e\n",thetai,thetaj, ftol);
+       printf("%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti*k=%.12e deltj*k=%.12e, xi-de*k=%.12e xj-de*k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4);
+       fprintf(ficlog,"%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti*k=%.12e deltj*k=%.12e, xi-de*k=%.12e xj-de*k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4);
+     }
+ #ifdef DEBUGHESSIJ
+     v1=hess[thetai][thetai];
+     v2=hess[thetaj][thetaj];
+     cv12=res;
+     /* Computing eigen value of Hessian matrix */
+     lc1=((v1+v2)+sqrt((v1+v2)*(v1+v2) - 4*(v1*v2-cv12*cv12)))/2.;
+     lc2=((v1+v2)-sqrt((v1+v2)*(v1+v2) - 4*(v1*v2-cv12*cv12)))/2.;
+     if ((lc2 <0) || (lc1 <0) ){
+       printf("Warning: sub Hessian matrix '%d%d' does not have positive eigen values \n",thetai,thetaj);
+       fprintf(ficlog, "Warning: sub Hessian matrix '%d%d' does not have positive eigen values \n",thetai,thetaj);
+       printf("%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti/k=%.12e deltj/k=%.12e, xi-de/k=%.12e xj-de/k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4);
+       fprintf(ficlog,"%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti/k=%.12e deltj/k=%.12e, xi-de/k=%.12e xj-de/k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4);
+     }
  #endif
    }
    return res;
  }
+     /* Not done yet: Was supposed to fix if not exactly at the maximum */
+ /* double hessij( double x[], double delti[], int thetai,int thetaj,double (*func)(double []),int npar) */
+ /* { */
+ /*   int i; */
+ /*   int l=1, lmax=20; */
+ /*   double k1,k2,k3,k4,res,fx; */
+ /*   double p2[MAXPARM+1]; */
+ /*   double delt=0.0001, delts, nkhi=10.,nkhif=1., khi=1.e-4; */
+ /*   int k=0,kmax=10; */
+ /*   double l1; */
+ /*   fx=func(x); */
+ /*   for(l=0 ; l <=lmax; l++){  /\* Enlarging the zone around the Maximum *\/ */
+ /*     l1=pow(10,l); */
+ /*     delts=delt; */
+ /*     for(k=1 ; k <kmax; k=k+1){ */
+ /*       delt = delti*(l1*k); */
+ /*       for (i=1;i<=npar;i++) p2[i]=x[i]; */
+ /*       p2[thetai]=x[thetai]+delti[thetai]/k; */
+ /*       p2[thetaj]=x[thetaj]+delti[thetaj]/k; */
+ /*       k1=func(p2)-fx; */
+ /*       p2[thetai]=x[thetai]+delti[thetai]/k; */
+ /*       p2[thetaj]=x[thetaj]-delti[thetaj]/k; */
+ /*       k2=func(p2)-fx; */
+ /*       p2[thetai]=x[thetai]-delti[thetai]/k; */
+ /*       p2[thetaj]=x[thetaj]+delti[thetaj]/k; */
+ /*       k3=func(p2)-fx; */
+ /*       p2[thetai]=x[thetai]-delti[thetai]/k; */
+ /*       p2[thetaj]=x[thetaj]-delti[thetaj]/k; */
+ /*       k4=func(p2)-fx; */
+ /*       res=(k1-k2-k3+k4)/4.0/delti[thetai]*k/delti[thetaj]*k/2.; /\* Because of L not 2*L *\/ */
+ /* #ifdef DEBUGHESSIJ */
+ /*       printf("%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti/k=%.12e deltj/k=%.12e, xi-de/k=%.12e xj-de/k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4); */
+ /*       fprintf(ficlog,"%d %d k=%d, k1=%.12e k2=%.12e k3=%.12e k4=%.12e delti/k=%.12e deltj/k=%.12e, xi-de/k=%.12e xj-de/k=%.12e  res=%.12e k1234=%.12e,k1-2=%.12e,k3-4=%.12e\n",thetai,thetaj,k,k1,k2,k3,k4,delti[thetai]/k,delti[thetaj]/k,x[thetai]-delti[thetai]/k,x[thetaj]-delti[thetaj]/k, res,k1-k2-k3+k4,k1-k2,k3-k4); */
+ /* #endif */
+ /*       if((k1 <khi/nkhi/2.) || (k2 <khi/nkhi/2.)|| (k4 <khi/nkhi/2.)|| (k4 <khi/nkhi/2.)){ */
+ /*      k=kmax; */
+ /*       } */
+ /*       else if((k1 >khi/nkhif) || (k2 >khi/nkhif) || (k4 >khi/nkhif) || (k4 >khi/nkhif)){ /\* Keeps lastvalue before 3.84/2 KHI2 5% 1d.f. *\/ */
+ /*      k=kmax; l=lmax*10; */
+ /*       } */
+ /*       else if((k1 >khi/nkhi) || (k2 >khi/nkhi)){  */
+ /*      delts=delt; */
+ /*       } */
+ /*     } /\* End loop k *\/ */
+ /*   } */
+ /*   delti[theta]=delts; */
+ /*   return res;  */
+ /* } */
  /************** Inverse of matrix **************/
  void ludcmp(double **a, int n, int *indx, double *d)
  {
- Line 2941  void pstamp(FILE *fichier)
+ Line 3550  void pstamp(FILE *fichier)
  }
  /************ Frequencies ********************/
- void  freqsummary(char fileres[], int iagemin, int iagemax, int **s, double **agev, int nlstate, int imx, int *Tvaraff, int **nbcode, int *ncodemax,double **mint,double **anint, char strstart[])
+ void  freqsummary(char fileres[], int iagemin, int iagemax, int **s, double **agev, int nlstate, int imx, \
+                   int *Tvaraff, int **nbcode, int *ncodemax,double **mint,double **anint, char strstart[],\
+                   int firstpass,  int lastpass, int stepm, int weightopt, char model[])
  {  /* Some frequencies */
    int i, m, jk, j1, bool, z1,j;
+   int mi; /* Effective wave */
    int first;
    double ***freq; /* Frequencies */
    double *pp, **prop;
    double pos,posprop, k2, dateintsum=0,k2cpt=0;
-   char fileresp[FILENAMELENGTH];
+   char fileresp[FILENAMELENGTH], fileresphtm[FILENAMELENGTH], fileresphtmfr[FILENAMELENGTH];
+   double agebegin, ageend;
    pp=vector(1,nlstate);
    prop=matrix(1,nlstate,iagemin,iagemax+3);
    strcpy(fileresp,"P_");
    strcat(fileresp,fileresu);
+   /*strcat(fileresphtm,fileresu);*/
    if((ficresp=fopen(fileresp,"w"))==NULL) {
      printf("Problem with prevalence resultfile: %s\n", fileresp);
      fprintf(ficlog,"Problem with prevalence resultfile: %s\n", fileresp);
      exit(0);
    }
+   strcpy(fileresphtm,subdirfext(optionfilefiname,"PHTM_",".htm"));
+   if((ficresphtm=fopen(fileresphtm,"w"))==NULL) {
+     printf("Problem with prevalence HTM resultfile '%s' with errno='%s'\n",fileresphtm,strerror(errno));
+     fprintf(ficlog,"Problem with prevalence HTM resultfile '%s' with errno='%s'\n",fileresphtm,strerror(errno));
+     fflush(ficlog);
+     exit(70);
+   }
+   else{
+     fprintf(ficresphtm,"<html><head>\n<title>IMaCh PHTM_ %s</title></head>\n <body><font size=\"2\">%s <br> %s</font> \
+ <hr size=\"2\" color=\"#EC5E5E\"> \n\
+ Title=%s <br>Datafile=%s Firstpass=%d Lastpass=%d Stepm=%d Weight=%d Model=1+age+%s<br>\n",\
+           fileresphtm,version,fullversion,title,datafile,firstpass,lastpass,stepm, weightopt, model);
+   }
+     fprintf(ficresphtm,"Current page is file <a href=\"%s\">%s</a><br>\n\n<h4>Frequencies and prevalence by age at begin of transition</h4>\n",fileresphtm, fileresphtm);
+   strcpy(fileresphtmfr,subdirfext(optionfilefiname,"PHTMFR_",".htm"));
+   if((ficresphtmfr=fopen(fileresphtmfr,"w"))==NULL) {
+     printf("Problem with frequency table HTM resultfile '%s' with errno='%s'\n",fileresphtmfr,strerror(errno));
+     fprintf(ficlog,"Problem with frequency table HTM resultfile '%s' with errno='%s'\n",fileresphtmfr,strerror(errno));
+     fflush(ficlog);
+     exit(70);
+   }
+   else{
+     fprintf(ficresphtmfr,"<html><head>\n<title>IMaCh PHTM_Frequency table %s</title></head>\n <body><font size=\"2\">%s <br> %s</font> \
+ <hr size=\"2\" color=\"#EC5E5E\"> \n\
+ Title=%s <br>Datafile=%s Firstpass=%d Lastpass=%d Stepm=%d Weight=%d Model=1+age+%s<br>\n",\
+           fileresphtmfr,version,fullversion,title,datafile,firstpass,lastpass,stepm, weightopt, model);
+   }
+   fprintf(ficresphtmfr,"Current page is file <a href=\"%s\">%s</a><br>\n\n<h4>Frequencies of all effective transitions by age at begin of transition </h4>Unknown status is -1<br/>\n",fileresphtmfr, fileresphtmfr);
    freq= ma3x(-5,nlstate+ndeath,-5,nlstate+ndeath,iagemin,iagemax+3);
    j1=0;
- Line 2968  void  freqsummary(char fileres[], int ia
+ Line 3613  void  freqsummary(char fileres[], int ia
    first=1;
-   /* for(k1=1; k1<=j ; k1++){ */  /* Loop on covariates */
+   for (j1 = 1; j1 <= (int) pow(2,cptcoveff); j1++){ /* Loop on covariates combination */
-   /*  for(i1=1; i1<=ncodemax[k1];i1++){ */ /* Now it is 2 */
-   /*    j1++; */
-   for (j1 = 1; j1 <= (int) pow(2,cptcoveff); j1++){
        /*printf("cptcoveff=%d Tvaraff=%d", cptcoveff,Tvaraff[1]);
          scanf("%d", i);*/
        for (i=-5; i<=nlstate+ndeath; i++)
- Line 2985  void  freqsummary(char fileres[], int ia
+ Line 3627  void  freqsummary(char fileres[], int ia
        dateintsum=0;
        k2cpt=0;
-       for (i=1; i<=imx; i++) {
+       for (i=1; i<=imx; i++) { /* For each individual i */
          bool=1;
-         if  (cptcovn>0) { /* Filter is here: Must be looked at for model=V1+V2+V3+V4 */
+         if (cptcovn>0) { /* Filter is here: Must be looked at for model=V1+V2+V3+V4 */
            for (z1=1; z1<=cptcoveff; z1++)
              if (covar[Tvaraff[z1]][i]!= nbcode[Tvaraff[z1]][codtabm(j1,z1)]){
                  /* Tests if the value of each of the covariates of i is equal to filter j1 */
- Line 2997  void  freqsummary(char fileres[], int ia
+ Line 3639  void  freqsummary(char fileres[], int ia
                  j1,z1,nbcode[Tvaraff[z1]][codtabm(j1,z1)],j1);*/
                /* For j1=7 in V1+V2+V3+V4 = 0 1 1 0 and codtabm(7,3)=1 and nbcde[3][?]=1*/
              }
-         }
+         } /* cptcovn > 0 */
          if (bool==1){
-           for(m=firstpass; m<=lastpass; m++){
+           /* for(m=firstpass; m<=lastpass; m++){ */
-             k2=anint[m][i]+(mint[m][i]/12.);
+           for(mi=1; mi<wav[i];mi++){
-             /*if ((k2>=dateprev1) && (k2<=dateprev2)) {*/
+             m=mw[mi][i];
-               if(agev[m][i]==0) agev[m][i]=iagemax+1;
+             /* dh[m][i] or dh[mw[mi][i]][i] is the delay between two effective (mi) waves m=mw[mi][i]
-               if(agev[m][i]==1) agev[m][i]=iagemax+2;
+                and mw[mi+1][i]. dh depends on stepm. */
-               if (s[m][i]>0 && s[m][i]<=nlstate) prop[s[m][i]][(int)agev[m][i]] += weight[i];
+             agebegin=agev[m][i]; /* Age at beginning of wave before transition*/
+             ageend=agev[m][i]+(dh[m][i])*stepm/YEARM; /* Age at end of wave and transition */
+             if(m >=firstpass && m <=lastpass){
+               k2=anint[m][i]+(mint[m][i]/12.);
+               /*if ((k2>=dateprev1) && (k2<=dateprev2)) {*/
+               if(agev[m][i]==0) agev[m][i]=iagemax+1;  /* All ages equal to 0 are in iagemax+1 */
+               if(agev[m][i]==1) agev[m][i]=iagemax+2;  /* All ages equal to 1 are in iagemax+2 */
+               if (s[m][i]>0 && s[m][i]<=nlstate)  /* If status at wave m is known and a live state */
+                 prop[s[m][i]][(int)agev[m][i]] += weight[i];  /* At age of beginning of transition, where status is known */
                if (m<lastpass) {
-                 freq[s[m][i]][s[m+1][i]][(int)agev[m][i]] += weight[i];
+                 /* if(s[m][i]==4 && s[m+1][i]==4) */
-                 freq[s[m][i]][s[m+1][i]][iagemax+3] += weight[i];
+                 /*   printf(" num=%ld m=%d, i=%d s1=%d s2=%d agev at m=%d\n", num[i], m, i,s[m][i],s[m+1][i], (int)agev[m][i]); */
-               }
+                 if(s[m][i]==-1)
+                   printf(" num=%ld m=%d, i=%d s1=%d s2=%d agev at m=%d agebegin=%.2f ageend=%.2f, agemed=%d\n", num[i], m, i,s[m][i],s[m+1][i], (int)agev[m][i],agebegin, ageend, (int)((agebegin+ageend)/2.));
-               if ((agev[m][i]>1) && (agev[m][i]< (iagemax+3))) {
+                 freq[s[m][i]][s[m+1][i]][(int)agev[m][i]] += weight[i]; /* At age of beginning of transition, where status is known */
-                 dateintsum=dateintsum+k2;
+                 /* freq[s[m][i]][s[m+1][i]][(int)((agebegin+ageend)/2.)] += weight[i]; */
-                 k2cpt++;
+                 freq[s[m][i]][s[m+1][i]][iagemax+3] += weight[i]; /* Total is in iagemax+3 *//* At age of beginning of transition, where status is known */
                }
-               /*}*/
+             }
-           }
+             if ((agev[m][i]>1) && (agev[m][i]< (iagemax+3)) && (anint[m][i]!=9999) && (mint[m][i]!=99)) {
-         }
+               dateintsum=dateintsum+k2;
-       } /* end i */
+               k2cpt++;
+               /* printf("i=%ld dateintmean = %lf dateintsum=%lf k2cpt=%lf k2=%lf\n",i, dateintsum/k2cpt, dateintsum,k2cpt, k2); */
+             }
+             /*}*/
+           } /* end m */
+         } /* end bool */
+       } /* end i = 1 to imx */
        /*      fprintf(ficresp, "#Count between %.lf/%.lf/%.lf and %.lf/%.lf/%.lf\n",jprev1, mprev1,anprev1,jprev2, mprev2,anprev2);*/
        pstamp(ficresp);
        if  (cptcovn>0) {
          fprintf(ficresp, "\n#********** Variable ");
-         for (z1=1; z1<=cptcoveff; z1++) fprintf(ficresp, "V%d=%d ",Tvaraff[z1],nbcode[Tvaraff[z1]][codtabm(j1,z1)]);
+         fprintf(ficresphtm, "\n<br/><br/><h3>********** Variable ");
-         fprintf(ficresp, "**********\n#");
+         fprintf(ficresphtmfr, "\n<br/><br/><h3>********** Variable ");
+         for (z1=1; z1<=cptcoveff; z1++){
+           fprintf(ficresp, "V%d=%d ",Tvaraff[z1],nbcode[Tvaraff[z1]][codtabm(j1,z1)]);
+           fprintf(ficresphtm, "V%d=%d ",Tvaraff[z1],nbcode[Tvaraff[z1]][codtabm(j1,z1)]);
+           fprintf(ficresphtmfr, "V%d=%d ",Tvaraff[z1],nbcode[Tvaraff[z1]][codtabm(j1,z1)]);
+         }
+           fprintf(ficresp, "**********\n#");
+         fprintf(ficresphtm, "**********</h3>\n");
+         fprintf(ficresphtmfr, "**********</h3>\n");
          fprintf(ficlog, "\n#********** Variable ");
          for (z1=1; z1<=cptcoveff; z1++) fprintf(ficlog, "V%d=%d ",Tvaraff[z1],nbcode[Tvaraff[z1]][codtabm(j1,z1)]);
-         fprintf(ficlog, "**********\n#");
+         fprintf(ficlog, "**********\n");
        }
-       for(i=1; i<=nlstate;i++)
+       fprintf(ficresphtm,"<table style=\"text-align:center; border: 1px solid\">");
+       for(i=1; i<=nlstate;i++) {
          fprintf(ficresp, " Age Prev(%d) N(%d) N",i,i);
+         fprintf(ficresphtm, "<th>Age</th><th>Prev(%d)</th><th>N(%d)</th><th>N</th>",i,i);
+       }
        fprintf(ficresp, "\n");
+       fprintf(ficresphtm, "\n");
+       /* Header of frequency table by age */
+       fprintf(ficresphtmfr,"<table style=\"text-align:center; border: 1px solid\">");
+       fprintf(ficresphtmfr,"<th>Age</th> ");
+       for(jk=-1; jk <=nlstate+ndeath; jk++){
+         for(m=-1; m <=nlstate+ndeath; m++){
+           if(jk!=0 && m!=0)
+             fprintf(ficresphtmfr,"<th>%d%d</th> ",jk,m);
+         }
+       }
+       fprintf(ficresphtmfr, "\n");
+       /* For each age */
        for(i=iagemin; i <= iagemax+3; i++){
-         if(i==iagemax+3){
+         fprintf(ficresphtm,"<tr>");
+         if(i==iagemax+1){
+           fprintf(ficlog,"1");
+           fprintf(ficresphtmfr,"<tr><th>0</th> ");
+         }else if(i==iagemax+2){
+           fprintf(ficlog,"0");
+           fprintf(ficresphtmfr,"<tr><th>Unknown</th> ");
+         }else if(i==iagemax+3){
            fprintf(ficlog,"Total");
+           fprintf(ficresphtmfr,"<tr><th>Total</th> ");
          }else{
            if(first==1){
              first=0;
              printf("See log file for details...\n");
            }
+           fprintf(ficresphtmfr,"<tr><th>%d</th> ",i);
            fprintf(ficlog,"Age %d", i);
          }
          for(jk=1; jk <=nlstate ; jk++){
- Line 3084  void  freqsummary(char fileres[], int ia
+ Line 3773  void  freqsummary(char fileres[], int ia
            if( i <= iagemax){
              if(pos>=1.e-5){
                fprintf(ficresp," %d %.5f %.0f %.0f",i,prop[jk][i]/posprop, prop[jk][i],posprop);
+               fprintf(ficresphtm,"<th>%d</th><td>%.5f</td><td>%.0f</td><td>%.0f</td>",i,prop[jk][i]/posprop, prop[jk][i],posprop);
                /*probs[i][jk][j1]= pp[jk]/pos;*/
                /*printf("\ni=%d jk=%d j1=%d %.5f %.0f %.0f %f",i,jk,j1,pp[jk]/pos, pp[jk],pos,probs[i][jk][j1]);*/
              }
-             else
+             else{
                fprintf(ficresp," %d NaNq %.0f %.0f",i,prop[jk][i],posprop);
+               fprintf(ficresphtm,"<th>%d</th><td>NaNq</td><td>%.0f</td><td>%.0f</td>",i, prop[jk][i],posprop);
+             }
            }
          }
-         for(jk=-1; jk <=nlstate+ndeath; jk++)
+         for(jk=-1; jk <=nlstate+ndeath; jk++){
-           for(m=-1; m <=nlstate+ndeath; m++)
+           for(m=-1; m <=nlstate+ndeath; m++){
-             if(freq[jk][m][i] !=0 ) {
+             if(freq[jk][m][i] !=0 ) { /* minimizing output */
-             if(first==1)
+               if(first==1){
-               printf(" %d%d=%.0f",jk,m,freq[jk][m][i]);
+                 printf(" %d%d=%.0f",jk,m,freq[jk][m][i]);
+               }
                fprintf(ficlog," %d%d=%.0f",jk,m,freq[jk][m][i]);
              }
-         if(i <= iagemax)
+             if(jk!=0 && m!=0)
+               fprintf(ficresphtmfr,"<td>%.0f</td> ",freq[jk][m][i]);
+           }
+         }
+         fprintf(ficresphtmfr,"</tr>\n ");
+         if(i <= iagemax){
            fprintf(ficresp,"\n");
+           fprintf(ficresphtm,"</tr>\n");
+         }
          if(first==1)
            printf("Others in log...\n");
          fprintf(ficlog,"\n");
-       }
+       } /* end loop i */
+       fprintf(ficresphtm,"</table>\n");
+       fprintf(ficresphtmfr,"</table>\n");
        /*}*/
-   }
+   } /* end j1 */
    dateintmean=dateintsum/k2cpt;
    fclose(ficresp);
+   fclose(ficresphtm);
+   fclose(ficresphtmfr);
    free_ma3x(freq,-5,nlstate+ndeath,-5,nlstate+ndeath, iagemin, iagemax+3);
    free_vector(pp,1,nlstate);
    free_matrix(prop,1,nlstate,iagemin, iagemax+3);
- Line 3125  void prevalence(double ***probs, double
+ Line 3829  void prevalence(double ***probs, double
    */
    int i, m, jk, j1, bool, z1,j;
+   int mi; /* Effective wave */
+   int iage;
+   double agebegin, ageend;
    double **prop;
    double posprop;
- Line 3144  void prevalence(double ***probs, double
+ Line 3851  void prevalence(double ***probs, double
    first=1;
    for(j1=1; j1<= (int) pow(2,cptcoveff);j1++){
-     /*for(i1=1; i1<=ncodemax[k1];i1++){
+     for (i=1; i<=nlstate; i++)
-       j1++;*/
+       for(iage=iagemin; iage <= iagemax+3; iage++)
+         prop[i][iage]=0.0;
-       for (i=1; i<=nlstate; i++)
-         for(m=iagemin; m <= iagemax+3; m++)
+     for (i=1; i<=imx; i++) { /* Each individual */
-           prop[i][m]=0.0;
+       bool=1;
+       if  (cptcovn>0) {  /* Filter is here: Must be looked at for model=V1+V2+V3+V4 */
-       for (i=1; i<=imx; i++) { /* Each individual */
+         for (z1=1; z1<=cptcoveff; z1++)
-         bool=1;
+           if (covar[Tvaraff[z1]][i]!= nbcode[Tvaraff[z1]][codtabm(j1,z1)])
-         if  (cptcovn>0) {
+             bool=0;
-           for (z1=1; z1<=cptcoveff; z1++)
+       }
-             if (covar[Tvaraff[z1]][i]!= nbcode[Tvaraff[z1]][codtabm(j1,z1)])
+       if (bool==1) {
-               bool=0;
+         /* for(m=firstpass; m<=lastpass; m++){/\* Other selection (we can limit to certain interviews*\/ */
-         }
+         for(mi=1; mi<wav[i];mi++){
-         if (bool==1) {
+           m=mw[mi][i];
-           for(m=firstpass; m<=lastpass; m++){/* Other selection (we can limit to certain interviews*/
+           agebegin=agev[m][i]; /* Age at beginning of wave before transition*/
+           /* ageend=agev[m][i]+(dh[m][i])*stepm/YEARM; /\* Age at end of wave and transition *\/ */
+           if(m >=firstpass && m <=lastpass){
              y2=anint[m][i]+(mint[m][i]/12.); /* Fractional date in year */
              if ((y2>=dateprev1) && (y2<=dateprev2)) { /* Here is the main selection (fractional years) */
                if(agev[m][i]==0) agev[m][i]=iagemax+1;
                if(agev[m][i]==1) agev[m][i]=iagemax+2;
                if((int)agev[m][i] <iagemin || (int)agev[m][i] >iagemax+3) printf("Error on individual =%d agev[m][i]=%f m=%d\n",i, agev[m][i],m);
                if (s[m][i]>0 && s[m][i]<=nlstate) {
                  /*if(i>4620) printf(" i=%d m=%d s[m][i]=%d (int)agev[m][i]=%d weight[i]=%f prop=%f\n",i,m,s[m][i],(int)agev[m][m],weight[i],prop[s[m][i]][(int)agev[m][i]]);*/
-                 prop[s[m][i]][(int)agev[m][i]] += weight[i];
+                 prop[s[m][i]][(int)agev[m][i]] += weight[i];/* At age of beginning of transition, where status is known */
                  prop[s[m][i]][iagemax+3] += weight[i];
-               }
+               } /* end valid statuses */
-             }
+             } /* end selection of dates */
            } /* end selection of waves */
-         }
+         } /* end effective waves */
-       }
+       } /* end bool */
-       for(i=iagemin; i <= iagemax+3; i++){
+     }
-         for(jk=1,posprop=0; jk <=nlstate ; jk++) {
+     for(i=iagemin; i <= iagemax+3; i++){
-           posprop += prop[jk][i];
+       for(jk=1,posprop=0; jk <=nlstate ; jk++) {
-         }
+         posprop += prop[jk][i];
+       }
-         for(jk=1; jk <=nlstate ; jk++){
-           if( i <=  iagemax){
+       for(jk=1; jk <=nlstate ; jk++){
-             if(posprop>=1.e-5){
+         if( i <=  iagemax){
-               probs[i][jk][j1]= prop[jk][i]/posprop;
+           if(posprop>=1.e-5){
-             } else{
+             probs[i][jk][j1]= prop[jk][i]/posprop;
-               if(first==1){
+           } else{
-                 first=0;
+             if(first==1){
-                 printf("Warning Observed prevalence probs[%d][%d][%d]=%lf because of lack of cases\nSee others on log file...\n",jk,i,j1,probs[i][jk][j1]);
+               first=0;
-               }
+               printf("Warning Observed prevalence probs[%d][%d][%d]=%lf because of lack of cases\nSee others on log file...\n",jk,i,j1,probs[i][jk][j1]);
              }
            }
-         }/* end jk */
+         }
-       }/* end i */
+       }/* end jk */
+     }/* end i */
      /*} *//* end i1 */
    } /* end j1 */
- Line 3214  void  concatwav(int wav[], int **dh, int
+ Line 3924  void  concatwav(int wav[], int **dh, int
    int i, mi, m;
    /* int j, k=0,jk, ju, jl,jmin=1e+5, jmax=-1;
       double sum=0., jmean=0.;*/
-   int first;
+   int first, firstwo, firsthree;
    int j, k=0,jk, ju, jl;
    double sum=0.;
    first=0;
+   firstwo=0;
+   firsthree=0;
    jmin=100000;
    jmax=-1;
    jmean=0.;
-   for(i=1; i<=imx; i++){
+   for(i=1; i<=imx; i++){  /* For simple cases and if state is death */
      mi=0;
      m=firstpass;
-     while(s[m][i] <= nlstate){
+     while(s[m][i] <= nlstate){  /* a live state */
-       if(s[m][i]>=1 || s[m][i]==-2 || s[m][i]==-4 || s[m][i]==-5)
+       if(s[m][i]>=1 || s[m][i]==-4 || s[m][i]==-5){ /* Since 0.98r4 if status=-2 vital status is really unknown, wave should be skipped */
          mw[++mi][i]=m;
-       if(m >=lastpass)
+       }
+       if(m >=lastpass){
+         if(s[m][i]==-1 && (int) andc[i] == 9999 && (int)anint[m][i] != 9999){
+           if(firsthree == 0){
+             printf("Information! Unknown health status for individual %ld line=%d occurred at last wave %d at known date %d/%d. Please, check if your unknown date of death %d/%d means a live state %d at wave %d. This case(%d)/wave(%d) contributes to the likelihood.\nOthers in log file only\n",num[i],i,lastpass,(int)mint[m][i],(int)anint[m][i], (int) moisdc[i], (int) andc[i], s[m][i], m, i, m);
+             fprintf(ficlog,"Information! Unknown status for individual %ld line=%d occurred at last wave %d at known date %d/%d. Please, check if your unknown date of death %d/%d means a live state %d at wave %d. This case(%d)/wave(%d) contributes to the likelihood.\nOthers in log file only\n",num[i],i,lastpass,(int)mint[m][i],(int)anint[m][i], (int) moisdc[i], (int) andc[i], s[m][i], m, i, m);
+             firsthree=1;
+           }else{
+             fprintf(ficlog,"Information! Unknown status for individual %ld line=%d occurred at last wave %d at known date %d/%d. Please, check if your unknown date of death %d/%d means a live state %d at wave %d. This case(%d)/wave(%d) contributes to the likelihood.\nOthers in log file only\n",num[i],i,lastpass,(int)mint[m][i],(int)anint[m][i], (int) moisdc[i], (int) andc[i], s[m][i], m, i, m);
+           }
+           mw[++mi][i]=m;
+         }
+         if(s[m][i]==-2){ /* Vital status is really unknown */
+           nbwarn++;
+           if((int)anint[m][i] == 9999){  /*  Has the vital status really been verified? */
+             printf("Warning! Vital status for individual %ld (line=%d) at last wave %d interviewed at date %d/%d is unknown %d. Please, check if the vital status and the date of death %d/%d are really unknown. This case (%d)/wave (%d) is skipped, no contribution to likelihood.\nOthers in log file only\n",num[i],i,lastpass,(int)mint[m][i],(int)anint[m][i], s[m][i], (int) moisdc[i], (int) andc[i], i, m);
+             fprintf(ficlog,"Warning! Vital status for individual %ld (line=%d) at last wave %d interviewed at date %d/%d is unknown %d. Please, check if the vital status and the date of death %d/%d are really unknown. This case (%d)/wave (%d) is skipped, no contribution to likelihood.\nOthers in log file only\n",num[i],i,lastpass,(int)mint[m][i],(int)anint[m][i], s[m][i], (int) moisdc[i], (int) andc[i], i, m);
+           }
+           break;
+         }
          break;
+       }
        else
          m++;
      }/* end while */
-     if (s[m][i] > nlstate){
+     /* After last pass */
+     if (s[m][i] > nlstate){  /* In a death state */
        mi++;     /* Death is another wave */
        /* if(mi==0)  never been interviewed correctly before death */
           /* Only death is a correct wave */
        mw[mi][i]=m;
+     }else if ((int) andc[i] != 9999) { /* Status is either death or negative. A death occured after lastpass, we can't take it into account because of potential bias */
+       /* m++; */
+       /* mi++; */
+       /* s[m][i]=nlstate+1;  /\* We are setting the status to the last of non live state *\/ */
+       /* mw[mi][i]=m; */
+       nberr++;
+       if(firstwo==0){
+         printf("Error! Death for individual %ld line=%d  occurred %d/%d after last wave %d interviewed at %d/%d. Potential bias if other individuals are still alive at this date but ignored. This case (%d)/wave (%d) is skipped, no contribution to likelihood.\nOthers in log file only\n",num[i],i,(int) moisdc[i], (int) andc[i], lastpass,(int)mint[m][i],(int)anint[m][i], i,m );
+         fprintf(ficlog,"Error! Death for individual %ld line=%d  occurred %d/%d after last wave %d interviewed at %d/%d. Potential bias if other individuals are still alive at this date but ignored. This case (%d)/wave (%d) is skipped, no contribution to likelihood.\nOthers in log file only\n",num[i],i,(int) moisdc[i], (int) andc[i], lastpass,(int)mint[m][i],(int)anint[m][i], i,m );
+         firstwo=1;
+       }else if(firstwo==1){
+         fprintf(ficlog,"Error! Death for individual %ld line=%d  occurred %d/%d after last wave %d interviewed at %d/%d. Potential bias if other individuals are still alive at this date but ignored. This case (%d)/wave (%d) is skipped, no contribution to likelihood.\nOthers in log file only\n",num[i],i,(int) moisdc[i], (int) andc[i], lastpass,(int)mint[m][i],(int)anint[m][i], i,m );
+       }
      }
      wav[i]=mi;
      if(mi==0){
        nbwarn++;
- Line 3251  void  concatwav(int wav[], int **dh, int
+ Line 3997  void  concatwav(int wav[], int **dh, int
        }
      } /* end mi==0 */
    } /* End individuals */
+   /* wav and mw are no more changed */
    for(i=1; i<=imx; i++){
      for(mi=1; mi<wav[i];mi++){
        if (stepm <=0)
- Line 3793  void cvevsij(double ***eij, double x[],
+ Line 4541  void cvevsij(double ***eij, double x[],
  }
  /************ Variance ******************/
- void varevsij(char optionfilefiname[], double ***vareij, double **matcov, double x[], double delti[], int nlstate, int stepm, double bage, double fage, double **oldm, double **savm, double **prlim, double ftolpl, int ij, int estepm, int cptcov, int cptcod, int popbased, int mobilav, char strstart[])
+  void varevsij(char optionfilefiname[], double ***vareij, double **matcov, double x[], double delti[], int nlstate, int stepm, double bage, double fage, double **oldm, double **savm, double **prlim, double ftolpl, int *ncvyearp, int ij, int estepm, int cptcov, int cptcod, int popbased, int mobilav, char strstart[])
  {
    /* Variance of health expectancies */
    /*  double **prevalim(double **prlim, int nlstate, double *xp, double age, double **oldm, double ** savm,double ftolpl);*/
- Line 3841  void varevsij(char optionfilefiname[], d
+ Line 4589  void varevsij(char optionfilefiname[], d
    /*printf("DIGIT=%s, ij=%d ijr=%-d|\n",digit, ij,ij);*/
    strcat(fileresprobmorprev,digit); /* Tvar to be done */
    strcat(fileresprobmorprev,digitp); /* Popbased or not, mobilav or not */
-   strcat(fileresprobmorprev,fileres);
+   strcat(fileresprobmorprev,fileresu);
    if((ficresprobmorprev=fopen(fileresprobmorprev,"w"))==NULL) {
      printf("Problem with resultfile: %s\n", fileresprobmorprev);
      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprobmorprev);
    }
    printf("Computing total mortality p.j=w1*p1j+w2*p2j+..: result on file '%s' \n",fileresprobmorprev);
    fprintf(ficlog,"Computing total mortality p.j=w1*p1j+w2*p2j+..: result on file '%s' \n",fileresprobmorprev);
    pstamp(ficresprobmorprev);
    fprintf(ficresprobmorprev,"# probabilities of dying before estepm=%d months for people of exact age and weighted probabilities w1*p1j+w2*p2j+... stand dev in()\n",estepm);
- Line 3858  void varevsij(char optionfilefiname[], d
+ Line 4605  void varevsij(char optionfilefiname[], d
        fprintf(ficresprobmorprev," w%1d p%-d%-d",i,i,j);
    }
    fprintf(ficresprobmorprev,"\n");
    fprintf(ficgp,"\n# Routine varevsij");
    fprintf(ficgp,"\nunset title \n");
  /* fprintf(fichtm, "#Local time at start: %s", strstart);*/
- Line 3895  void varevsij(char optionfilefiname[], d
+ Line 4643  void varevsij(char optionfilefiname[], d
    /* For example we decided to compute the life expectancy with the smallest unit */
    /* hstepm beeing the number of stepms, if hstepm=1 the length of hstepm is stepm.
       nhstepm is the number of hstepm from age to agelim
-      nstepm is the number of stepm from age to agelin.
+      nstepm is the number of stepm from age to agelim.
-      Look at function hpijx to understand why (it is linked to memory size questions) */
+      Look at function hpijx to understand why because of memory size limitations,
-   /* We decided (b) to get a life expectancy respecting the most precise curvature of the
+      we decided (b) to get a life expectancy respecting the most precise curvature of the
       survival function given by stepm (the optimization length). Unfortunately it
       means that if the survival funtion is printed every two years of age and if
       you sum them up and add 1 year (area under the trapezoids) you won't get the same
- Line 3918  void varevsij(char optionfilefiname[], d
+ Line 4666  void varevsij(char optionfilefiname[], d
        for(i=1; i<=npar; i++){ /* Computes gradient x + delta*/
          xp[i] = x[i] + (i==theta ?delti[theta]:0);
        }
-       hpxij(p3mat,nhstepm,age,hstepm,xp,nlstate,stepm,oldm,savm, ij);
-       prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ij);
+       prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ncvyearp,ij);
        if (popbased==1) {
          if(mobilav ==0){
- Line 3931  void varevsij(char optionfilefiname[], d
+ Line 4679  void varevsij(char optionfilefiname[], d
          }
        }
+       hpxij(p3mat,nhstepm,age,hstepm,xp,nlstate,stepm,oldm,savm, ij);  /* Returns p3mat[i][j][h] for h=1 to nhstepm */
        for(j=1; j<= nlstate; j++){
          for(h=0; h<=nhstepm; h++){
            for(i=1, gp[h][j]=0.;i<=nlstate;i++)
              gp[h][j] += prlim[i][i]*p3mat[i][j][h];
          }
        }
-       /* This for computing probability of death (h=1 means
+       /* Next for computing probability of death (h=1 means
           computed over hstepm matrices product = hstepm*stepm months)
           as a weighted average of prlim.
        */
- Line 3949  void varevsij(char optionfilefiname[], d
+ Line 4698  void varevsij(char optionfilefiname[], d
        for(i=1; i<=npar; i++) /* Computes gradient x - delta */
          xp[i] = x[i] - (i==theta ?delti[theta]:0);
-       hpxij(p3mat,nhstepm,age,hstepm,xp,nlstate,stepm,oldm,savm, ij);
-       prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ij);
+       prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ncvyearp, ij);
        if (popbased==1) {
          if(mobilav ==0){
- Line 3962  void varevsij(char optionfilefiname[], d
+ Line 4711  void varevsij(char optionfilefiname[], d
          }
        }
+       hpxij(p3mat,nhstepm,age,hstepm,xp,nlstate,stepm,oldm,savm, ij);
        for(j=1; j<= nlstate; j++){  /* Sum of wi * eij = e.j */
          for(h=0; h<=nhstepm; h++){
            for(i=1, gm[h][j]=0.;i<=nlstate;i++)
- Line 4024  void varevsij(char optionfilefiname[], d
+ Line 4775  void varevsij(char optionfilefiname[], d
          varppt[j][i]=doldmp[j][i];
      /* end ppptj */
      /*  x centered again */
-     hpxij(p3mat,nhstepm,age,hstepm,x,nlstate,stepm,oldm,savm, ij);
-     prevalim(prlim,nlstate,x,age,oldm,savm,ftolpl,ij);
+     prevalim(prlim,nlstate,x,age,oldm,savm,ftolpl,ncvyearp,ij);
      if (popbased==1) {
        if(mobilav ==0){
- Line 4041  void varevsij(char optionfilefiname[], d
+ Line 4792  void varevsij(char optionfilefiname[], d
         computed over hstepm (estepm) matrices product = hstepm*stepm months)
         as a weighted average of prlim.
      */
+     hpxij(p3mat,nhstepm,age,hstepm,x,nlstate,stepm,oldm,savm, ij);
      for(j=nlstate+1;j<=nlstate+ndeath;j++){
        for(i=1,gmp[j]=0.;i<= nlstate; i++)
          gmp[j] += prlim[i][i]*p3mat[i][j][1];
- Line 4103  void varevsij(char optionfilefiname[], d
+ Line 4855  void varevsij(char optionfilefiname[], d
  }  /* end varevsij */
  /************ Variance of prevlim ******************/
- void varprevlim(char fileres[], double **varpl, double **matcov, double x[], double delti[], int nlstate, int stepm, double bage, double fage, double **oldm, double **savm, double **prlim, double ftolpl, int ij, char strstart[])
+  void varprevlim(char fileres[], double **varpl, double **matcov, double x[], double delti[], int nlstate, int stepm, double bage, double fage, double **oldm, double **savm, double **prlim, double ftolpl, int *ncvyearp, int ij, char strstart[])
  {
-   /* Variance of prevalence limit */
+   /* Variance of prevalence limit  for each state ij using current parameters x[] and estimates of neighbourhood give by delti*/
    /*  double **prevalim(double **prlim, int nlstate, double *xp, double age, double **oldm, double **savm,double ftolpl);*/
    double **dnewm,**doldm;
- Line 4113  void varprevlim(char fileres[], double *
+ Line 4865  void varprevlim(char fileres[], double *
    double *xp;
    double *gp, *gm;
    double **gradg, **trgradg;
+   double **mgm, **mgp;
    double age,agelim;
    int theta;
- Line 4135  void varprevlim(char fileres[], double *
+ Line 4888  void varprevlim(char fileres[], double *
      if (stepm >= YEARM) hstepm=1;
      nhstepm = nhstepm/hstepm; /* Typically 40/4=10 */
      gradg=matrix(1,npar,1,nlstate);
+     mgp=matrix(1,npar,1,nlstate);
+     mgm=matrix(1,npar,1,nlstate);
      gp=vector(1,nlstate);
      gm=vector(1,nlstate);
- Line 4142  void varprevlim(char fileres[], double *
+ Line 4897  void varprevlim(char fileres[], double *
        for(i=1; i<=npar; i++){ /* Computes gradient */
          xp[i] = x[i] + (i==theta ?delti[theta]:0);
        }
-       prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ij);
+       if((int)age==79 ||(int)age== 80 ||(int)age== 81 )
-       for(i=1;i<=nlstate;i++)
+         prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ncvyearp,ij);
+       else
+         prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ncvyearp,ij);
+       for(i=1;i<=nlstate;i++){
          gp[i] = prlim[i][i];
+         mgp[theta][i] = prlim[i][i];
+       }
        for(i=1; i<=npar; i++) /* Computes gradient */
          xp[i] = x[i] - (i==theta ?delti[theta]:0);
-       prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ij);
+       if((int)age==79 ||(int)age== 80 ||(int)age== 81 )
-       for(i=1;i<=nlstate;i++)
+         prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ncvyearp,ij);
+       else
+         prevalim(prlim,nlstate,xp,age,oldm,savm,ftolpl,ncvyearp,ij);
+       for(i=1;i<=nlstate;i++){
          gm[i] = prlim[i][i];
+         mgm[theta][i] = prlim[i][i];
+       }
        for(i=1;i<=nlstate;i++)
          gradg[theta][i]= (gp[i]-gm[i])/2./delti[theta];
+       /* gradg[theta][2]= -gradg[theta][1]; */ /* For testing if nlstate=2 */
      } /* End theta */
      trgradg =matrix(1,nlstate,1,npar);
- Line 4161  void varprevlim(char fileres[], double *
+ Line 4925  void varprevlim(char fileres[], double *
      for(j=1; j<=nlstate;j++)
        for(theta=1; theta <=npar; theta++)
          trgradg[j][theta]=gradg[theta][j];
+     /* if((int)age==79 ||(int)age== 80 ||(int)age== 81 ){ */
+     /*   printf("\nmgm mgp %d ",(int)age); */
+     /*   for(j=1; j<=nlstate;j++){ */
+     /*  printf(" %d ",j); */
+     /*  for(theta=1; theta <=npar; theta++) */
+     /*    printf(" %d %lf %lf",theta,mgm[theta][j],mgp[theta][j]); */
+     /*  printf("\n "); */
+     /*   } */
+     /* } */
+     /* if((int)age==79 ||(int)age== 80 ||(int)age== 81 ){ */
+     /*   printf("\n gradg %d ",(int)age); */
+     /*   for(j=1; j<=nlstate;j++){ */
+     /*  printf("%d ",j); */
+     /*  for(theta=1; theta <=npar; theta++) */
+     /*    printf("%d %lf ",theta,gradg[theta][j]); */
+     /*  printf("\n "); */
+     /*   } */
+     /* } */
      for(i=1;i<=nlstate;i++)
        varpl[i][(int)age] =0.;
+     if((int)age==79 ||(int)age== 80  ||(int)age== 81){
      matprod2(dnewm,trgradg,1,nlstate,1,npar,1,npar,matcov);
      matprod2(doldm,dnewm,1,nlstate,1,npar,1,nlstate,gradg);
+     }else{
+     matprod2(dnewm,trgradg,1,nlstate,1,npar,1,npar,matcov);
+     matprod2(doldm,dnewm,1,nlstate,1,npar,1,nlstate,gradg);
+     }
      for(i=1;i<=nlstate;i++)
        varpl[i][(int)age] = doldm[i][i]; /* Covariances are useless */
- Line 4175  void varprevlim(char fileres[], double *
+ Line 4962  void varprevlim(char fileres[], double *
      fprintf(ficresvpl,"\n");
      free_vector(gp,1,nlstate);
      free_vector(gm,1,nlstate);
+     free_matrix(mgm,1,npar,1,nlstate);
+     free_matrix(mgp,1,npar,1,nlstate);
      free_matrix(gradg,1,npar,1,nlstate);
      free_matrix(trgradg,1,nlstate,1,npar);
    } /* End age */
- Line 4213  void varprob(char optionfilefiname[], do
+ Line 5002  void varprob(char optionfilefiname[], do
      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprob);
    }
    strcpy(fileresprobcov,"PROBCOV_");
-   strcat(fileresprobcov,fileres);
+   strcat(fileresprobcov,fileresu);
    if((ficresprobcov=fopen(fileresprobcov,"w"))==NULL) {
      printf("Problem with resultfile: %s\n", fileresprobcov);
      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprobcov);
    }
    strcpy(fileresprobcor,"PROBCOR_");
-   strcat(fileresprobcor,fileres);
+   strcat(fileresprobcor,fileresu);
    if((ficresprobcor=fopen(fileresprobcor,"w"))==NULL) {
      printf("Problem with resultfile: %s\n", fileresprobcor);
      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprobcor);
- Line 4525  To be simple, these graphs help to under
+ Line 5314  To be simple, these graphs help to under
  void printinghtml(char fileresu[], char title[], char datafile[], int firstpass, \
                    int lastpass, int stepm, int weightopt, char model[],\
                    int imx,int jmin, int jmax, double jmeanint,char rfileres[],\
-                   int popforecast, int estepm ,\
+                   int popforecast, int prevfcast, int backcast, int estepm , \
-                   double jprev1, double mprev1,double anprev1, \
+                   double jprev1, double mprev1,double anprev1, double dateprev1, \
-                   double jprev2, double mprev2,double anprev2){
+                   double jprev2, double mprev2,double anprev2, double dateprev2){
    int jj1, k1, i1, cpt;
     fprintf(fichtm,"<ul><li><a href='#firstorder'>Result files (first order: no variance)</a>\n \
     <li><a href='#secondorder'>Result files (second order (variance)</a>\n \
  </ul>");
-    fprintf(fichtm,"<ul><li><h4><a name='firstorder'>Result files (first order: no variance)</a></h4>\n \
+    fprintf(fichtm,"<ul><li><h4><a name='firstorder'>Result files (first order: no variance)</a></h4>\n");
-  - Observed prevalence in each state (during the period defined between %.lf/%.lf/%.lf and %.lf/%.lf/%.lf): <a href=\"%s\">%s</a> <br>\n ",
+    fprintf(fichtm,"<li>- Observed frequency between two states (during the period defined between %.lf/%.lf/%.lf and %.lf/%.lf/%.lf): <a href=\"%s\">%s</a> (html file)<br/>\n",
-            jprev1, mprev1,anprev1,jprev2, mprev2,anprev2,subdirf2(fileresu,"P_"),subdirf2(fileresu,"P_"));
+            jprev1, mprev1,anprev1,jprev2, mprev2,anprev2,subdirfext3(optionfilefiname,"PHTMFR_",".htm"),subdirfext3(optionfilefiname,"PHTMFR_",".htm"));
+    fprintf(fichtm,"<li> - Observed prevalence in each state (during the period defined between %.lf/%.lf/%.lf and %.lf/%.lf/%.lf): <a href=\"%s\">%s</a> (html file) ",
+            jprev1, mprev1,anprev1,jprev2, mprev2,anprev2,subdirfext3(optionfilefiname,"PHTM_",".htm"),subdirfext3(optionfilefiname,"PHTM_",".htm"));
+    fprintf(fichtm,",  <a href=\"%s\">%s</a> (text file) <br>\n",subdirf2(fileresu,"P_"),subdirf2(fileresu,"P_"));
     fprintf(fichtm,"\
   - Estimated transition probabilities over %d (stepm) months: <a href=\"%s\">%s</a><br>\n ",
             stepm,subdirf2(fileresu,"PIJ_"),subdirf2(fileresu,"PIJ_"));
     fprintf(fichtm,"\
+  - Estimated back transition probabilities over %d (stepm) months: <a href=\"%s\">%s</a><br>\n ",
+            stepm,subdirf2(fileresu,"PIJB_"),subdirf2(fileresu,"PIJB_"));
+    fprintf(fichtm,"\
   - Period (stable) prevalence in each health state: <a href=\"%s\">%s</a> <br>\n",
             subdirf2(fileresu,"PL_"),subdirf2(fileresu,"PL_"));
     fprintf(fichtm,"\
-  - (a) Life expectancies by health status at initial age, ei. (b) health expectancies by health status at initial age, eij . If one or more covariates are included, specific tables for each value of the covariate are output in sequences within the same file (estepm=%2d months): \
+  - Period (stable) back prevalence in each health state: <a href=\"%s\">%s</a> <br>\n",
+            subdirf2(fileresu,"PLB_"),subdirf2(fileresu,"PLB_"));
+    fprintf(fichtm,"\
+  - (a) Life expectancies by health status at initial age, e<sub>i.</sub> (b) health expectancies by health status at initial age, e<sub>ij</sub> . If one or more covariates are included, specific tables for each value of the covariate are output in sequences within the same file (estepm=%2d months): \
     <a href=\"%s\">%s</a> <br>\n",
             estepm,subdirf2(fileresu,"E_"),subdirf2(fileresu,"E_"));
-    fprintf(fichtm,"\
+    if(prevfcast==1){
-  - Population projections by age and states: \
+      fprintf(fichtm,"\
+  - Prevalence projections by age and states:                            \
     <a href=\"%s\">%s</a> <br>\n</li>", subdirf2(fileresu,"F_"),subdirf2(fileresu,"F_"));
+    }
  fprintf(fichtm," \n<ul><li><b>Graphs</b></li><p>");
- Line 4568  fprintf(fichtm," \n<ul><li><b>Graphs</b>
+ Line 5368  fprintf(fichtm," \n<ul><li><b>Graphs</b>
         fprintf(fichtm," ************\n<hr size=\"2\" color=\"#EC5E5E\">");
       }
       /* aij, bij */
-      fprintf(fichtm,"<br>- Logit model, for example: logit(pij)=log(pij/pii)= aij+ bij age + V1 age + etc. as a function of age: <a href=\"%s_%d-1.svg\">%s_%d-1.svg</a><br> \
+      fprintf(fichtm,"<br>- Logit model (yours is: 1+age+%s), for example: logit(pij)=log(pij/pii)= aij+ bij age + V1 age + etc. as a function of age: <a href=\"%s_%d-1.svg\">%s_%d-1.svg</a><br> \
- <img src=\"%s_%d-1.svg\">",subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1);
+ <img src=\"%s_%d-1.svg\">",model,subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1);
       /* Pij */
-      fprintf(fichtm,"<br>\n- Pij or Conditional probabilities to be observed in state j being in state i, %d (stepm) months before: <a href=\"%s_%d-2.svg\">%s_%d-2.svg</a><br> \
+      fprintf(fichtm,"<br>\n- P<sub>ij</sub> or conditional probabilities to be observed in state j being in state i, %d (stepm) months before: <a href=\"%s_%d-2.svg\">%s_%d-2.svg</a><br> \
  <img src=\"%s_%d-2.svg\">",stepm,subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1);
       /* Quasi-incidences */
-      fprintf(fichtm,"<br>\n- Iij or Conditional probabilities to be observed in state j being in state i %d (stepm) months\
+      fprintf(fichtm,"<br>\n- I<sub>ij</sub> or Conditional probabilities to be observed in state j being in state i %d (stepm) months\
   before but expressed in per year i.e. quasi incidences if stepm is small and probabilities too,\
-  incidence (rates) are the limit when h tends to zero of the ratio of the probability hPij \
+  incidence (rates) are the limit when h tends to zero of the ratio of the probability  <sub>h</sub>P<sub>ij</sub> \
- divided by h: hPij/h : <a href=\"%s_%d-3.svg\">%s_%d-3.svg</a><br> \
+ divided by h: <sub>h</sub>P<sub>ij</sub>/h : <a href=\"%s_%d-3.svg\">%s_%d-3.svg</a><br> \
  <img src=\"%s_%d-3.svg\">",stepm,subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1,subdirf2(optionfilefiname,"PE_"),jj1);
       /* Survival functions (period) in state j */
       for(cpt=1; cpt<=nlstate;cpt++){
- Line 4586  divided by h: hPij/h : <a href=\"%s_%d-3
+ Line 5386  divided by h: hPij/h : <a href=\"%s_%d-3
       }
       /* State specific survival functions (period) */
       for(cpt=1; cpt<=nlstate;cpt++){
-        fprintf(fichtm,"<br>\n- Survival functions from state %d in any different live states and total.\
+        fprintf(fichtm,"<br>\n- Survival functions from state %d in each live state and total.\
   Or probability to survive in various states (1 to %d) being in state %d at different ages.\
   <a href=\"%s%d_%d.svg\">%s%d_%d.svg</a><br> <img src=\"%s_%d-%d.svg\">", cpt, nlstate, cpt, subdirf2(optionfilefiname,"LIJT_"),cpt,jj1,subdirf2(optionfilefiname,"LIJT_"),cpt,jj1,subdirf2(optionfilefiname,"LIJT_"),cpt,jj1);
       }
       /* Period (stable) prevalence in each health state */
       for(cpt=1; cpt<=nlstate;cpt++){
-        fprintf(fichtm,"<br>\n- Convergence to period (stable) prevalence in state %d. Or probability to be in state %d being in state (1 to %d) at different ages. <a href=\"%s%d_%d.svg\">%s%d_%d.svg</a><br> \
+        fprintf(fichtm,"<br>\n- Convergence to period (stable) prevalence in state %d. Or probability to be in state %d being in state (1 to %d) at different ages. <a href=\"%s_%d-%d.svg\">%s_%d-%d.svg</a><br> \
  <img src=\"%s_%d-%d.svg\">", cpt, cpt, nlstate, subdirf2(optionfilefiname,"P_"),cpt,jj1,subdirf2(optionfilefiname,"P_"),cpt,jj1,subdirf2(optionfilefiname,"P_"),cpt,jj1);
       }
+     if(backcast==1){
+      /* Period (stable) back prevalence in each health state */
+      for(cpt=1; cpt<=nlstate;cpt++){
+        fprintf(fichtm,"<br>\n- Convergence to period (stable) back prevalence in state %d. Or probability to be in state %d being in state (1 to %d) at different ages. <a href=\"%s_%d-%d.svg\">%s_%d-%d.svg</a><br> \
+ <img src=\"%s_%d-%d.svg\">", cpt, cpt, nlstate, subdirf2(optionfilefiname,"PB_"),cpt,jj1,subdirf2(optionfilefiname,"PB_"),cpt,jj1,subdirf2(optionfilefiname,"PB_"),cpt,jj1);
+      }
+     }
+     if(prevfcast==1){
+       /* Projection of prevalence up to period (stable) prevalence in each health state */
+       for(cpt=1; cpt<=nlstate;cpt++){
+         fprintf(fichtm,"<br>\n- Projection of cross-sectional prevalence (estimated with cases observed from %.1f to %.1f) up to period (stable) prevalence in state %d. Or probability to be in state %d being in state (1 to %d) at different ages. <a href=\"%s%d_%d.svg\">%s%d_%d.svg</a><br> \
+ <img src=\"%s_%d-%d.svg\">", dateprev1, dateprev2, cpt, cpt, nlstate, subdirf2(optionfilefiname,"PROJ_"),cpt,jj1,subdirf2(optionfilefiname,"PROJ_"),cpt,jj1,subdirf2(optionfilefiname,"PROJ_"),cpt,jj1);
+       }
+     }
       for(cpt=1; cpt<=nlstate;cpt++) {
-        fprintf(fichtm,"\n<br>- Life expectancy by health state (%d) at initial age and its decomposition into health expectancies in each alive state (1 to %d) (or area under each survival functions): <a href=\"%s%d%d.svg\">%s%d%d.svg</a> <br> \
+        fprintf(fichtm,"\n<br>- Life expectancy by health state (%d) at initial age and its decomposition into health expectancies in each alive state (1 to %d) (or area under each survival functions): <a href=\"%s_%d%d.svg\">%s_%d%d.svg</a> <br> \
  <img src=\"%s_%d%d.svg\">",cpt,nlstate,subdirf2(optionfilefiname,"EXP_"),cpt,jj1,subdirf2(optionfilefiname,"EXP_"),cpt,jj1,subdirf2(optionfilefiname,"EXP_"),cpt,jj1);
       }
     /* } /\* end i1 *\/ */
- Line 4606  divided by h: hPij/h : <a href=\"%s_%d-3
+ Line 5421  divided by h: hPij/h : <a href=\"%s_%d-3
   fprintf(fichtm,"\
  \n<br><li><h4> <a name='secondorder'>Result files (second order: variances)</a></h4>\n\
   - Parameter file with estimated parameters and covariance matrix: <a href=\"%s\">%s</a> <br> \
-  - 95%% confidence intervals and Wald tests of the estimated parameters are in the log file.<br> \
+  - 95%% confidence intervals and Wald tests of the estimated parameters are in the log file if optimization has been done (mle != 0).<br> \
  But because parameters are usually highly correlated (a higher incidence of disability \
  and a higher incidence of recovery can give very close observed transition) it might \
  be very useful to look not only at linear confidence intervals estimated from the \
- Line 4666  See page 'Matrix of variance-covariance
+ Line 5481  See page 'Matrix of variance-covariance
       }
       for(cpt=1; cpt<=nlstate;cpt++) {
         fprintf(fichtm,"<br>- Observed (cross-sectional) and period (incidence based) \
- prevalence (with 95%% confidence interval) in state (%d): %s%d_%d.svg <br>\
+ prevalence (with 95%% confidence interval) in state (%d): <a href=\"%s_%d%d.svg\"> %s_%d-%d.svg <br>\
- <img src=\"%s_%d-%d.svg\">",cpt,subdirf2(optionfilefiname,"V_"),cpt,jj1,subdirf2(optionfilefiname,"V_"),cpt,jj1);
+ <img src=\"%s_%d-%d.svg\">",cpt,subdirf2(optionfilefiname,"V_"),cpt,jj1,subdirf2(optionfilefiname,"V_"),cpt,jj1,subdirf2(optionfilefiname,"V_"),cpt,jj1);
       }
       fprintf(fichtm,"\n<br>- Total life expectancy by age and \
  health expectancies in states (1) and (2). If popbased=1 the smooth (due to the model) \
  true period expectancies (those weighted with period prevalences are also\
   drawn in addition to the population based expectancies computed using\
-  observed and cahotic prevalences: %s_%d.svg<br>\
+  observed and cahotic prevalences:  <a href=\"%s_%d.svg\">%s_%d.svg<br>\
- <img src=\"%s_%d.svg\">",subdirf2(optionfilefiname,"E_"),jj1,subdirf2(optionfilefiname,"E_"),jj1);
+ <img src=\"%s_%d.svg\">",subdirf2(optionfilefiname,"E_"),jj1,subdirf2(optionfilefiname,"E_"),jj1,subdirf2(optionfilefiname,"E_"),jj1);
     /* } /\* end i1 *\/ */
   }/* End k1 */
   fprintf(fichtm,"</ul>");
- Line 4682  true period expectancies (those weighted
+ Line 5497  true period expectancies (those weighted
  }
  /******************* Gnuplot file **************/
- void printinggnuplot(char fileresu[], char optionfilefiname[], double ageminpar, double agemaxpar, double fage , char pathc[], double p[]){
+     void printinggnuplot(char fileresu[], char optionfilefiname[], double ageminpar, double agemaxpar, double fage , int prevfcast, char pathc[], double p[]){
    char dirfileres[132],optfileres[132];
    int cpt=0,k1=0,i=0,k=0,j=0,jk=0,k2=0,k3=0,ij=0,l=0;
+   int lv=0, vlv=0, kl=0;
    int ng=0;
    int vpopbased;
  /*   if((ficgp=fopen(optionfilegnuplot,"a"))==NULL) { */
- Line 4698  void printinggnuplot(char fileresu[], ch
+ Line 5514  void printinggnuplot(char fileresu[], ch
      /*#endif */
    m=pow(2,cptcoveff);
+   /* Contribution to likelihood */
+   /* Plot the probability implied in the likelihood */
+     fprintf(ficgp,"\n# Contributions to the Likelihood, mle >=1. For mle=4 no interpolation, pure matrix products.\n#\n");
+     fprintf(ficgp,"\n set log y; unset log x;set xlabel \"Age\"; set ylabel \"Likelihood (-2Log(L))\";");
+     /* fprintf(ficgp,"\nset ter svg size 640, 480"); */ /* Too big for svg */
+     fprintf(ficgp,"\nset ter pngcairo size 640, 480");
+ /* nice for mle=4 plot by number of matrix products.
+    replot  "rrtest1/toto.txt" u 2:($4 == 1 && $5==2 ? $9 : 1/0):5 t "p12" with point lc 1 */
+ /* replot exp(p1+p2*x)/(1+exp(p1+p2*x)+exp(p3+p4*x)+exp(p5+p6*x)) t "p12(x)"  */
+     /* fprintf(ficgp,"\nset out \"%s.svg\";",subdirf2(optionfilefiname,"ILK_")); */
+     fprintf(ficgp,"\nset out \"%s-dest.png\";",subdirf2(optionfilefiname,"ILK_"));
+     fprintf(ficgp,"\nset log y;plot  \"%s\" u 2:(-$13):6 t \"All sample, transitions colored by destination\" with dots lc variable; set out;\n",subdirf(fileresilk));
+     fprintf(ficgp,"\nset out \"%s-ori.png\";",subdirf2(optionfilefiname,"ILK_"));
+     fprintf(ficgp,"\nset log y;plot  \"%s\" u 2:(-$13):5 t \"All sample, transitions colored by origin\" with dots lc variable; set out;\n\n",subdirf(fileresilk));
+     for (i=1; i<= nlstate ; i ++) {
+       fprintf(ficgp,"\nset out \"%s-p%dj.png\";set ylabel \"Probability for each individual/wave\";",subdirf2(optionfilefiname,"ILK_"),i);
+       fprintf(ficgp,"unset log;\n# plot weighted, mean weight should have point size of 0.5\n plot  \"%s\"",subdirf(fileresilk));
+       fprintf(ficgp,"  u  2:($5 == %d && $6==%d ? $10 : 1/0):($12/4.):6 t \"p%d%d\" with points pointtype 7 ps variable lc variable \\\n",i,1,i,1);
+       for (j=2; j<= nlstate+ndeath ; j ++) {
+         fprintf(ficgp,",\\\n \"\" u  2:($5 == %d && $6==%d ? $10 : 1/0):($12/4.):6 t \"p%d%d\" with points pointtype 7 ps variable lc variable ",i,j,i,j);
+       }
+       fprintf(ficgp,";\nset out; unset ylabel;\n");
+     }
+     /* unset log; plot  "rrtest1_sorted_4/ILK_rrtest1_sorted_4.txt" u  2:($4 == 1 && $5==2 ? $9 : 1/0):5 t "p12" with points lc variable */
+     /* fprintf(ficgp,"\nset log y;plot  \"%s\" u 2:(-$11):3 t \"All sample, all transitions\" with dots lc variable",subdirf(fileresilk)); */
+     /* fprintf(ficgp,"\nreplot  \"%s\" u 2:($3 <= 3 ? -$11 : 1/0):3 t \"First 3 individuals\" with line lc variable", subdirf(fileresilk)); */
+     fprintf(ficgp,"\nset out;unset log\n");
+     /* fprintf(ficgp,"\nset out \"%s.svg\"; replot; set out; # bug gnuplot",subdirf2(optionfilefiname,"ILK_")); */
    strcpy(dirfileres,optionfilefiname);
    strcpy(optfileres,"vpl");
   /* 1eme*/
-   fprintf(ficgp,"\n# 1st: Period (stable) prevalence with CI: 'VPL_' files\n");
+   for (cpt=1; cpt<= nlstate ; cpt ++) { /* For each live state */
-   for (cpt=1; cpt<= nlstate ; cpt ++) {
+     for (k1=1; k1<= m ; k1 ++) { /* For each combination of covariate */
-     for (k1=1; k1<= m ; k1 ++) { /* plot [100000000000000000000:-100000000000000000000] "mysbiaspar/vplrmysbiaspar.txt to check */
+       /* plot [100000000000000000000:-100000000000000000000] "mysbiaspar/vplrmysbiaspar.txt to check */
+       fprintf(ficgp,"\n# 1st: Period (stable) prevalence with CI: 'VPL_' files ");
+       for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
+         lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate number corresponding to k1 combination */
+         /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+         /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+         /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+         vlv= nbcode[Tvaraff[lv]][lv];
+         fprintf(ficgp," V%d=%d ",k,vlv);
+       }
+       fprintf(ficgp,"\n#\n");
       fprintf(ficgp,"\nset out \"%s_%d-%d.svg\" \n",subdirf2(optionfilefiname,"V_"),cpt,k1);
       fprintf(ficgp,"\n#set out \"V_%s_%d-%d.svg\" \n",optionfilefiname,cpt,k1);
       fprintf(ficgp,"set xlabel \"Age\" \n\
- Line 4730  plot [%.f:%.f] \"%s\" every :::%d::%d u
+ Line 5586  plot [%.f:%.f] \"%s\" every :::%d::%d u
      } /* k1 */
    } /* cpt */
    /*2 eme*/
-   fprintf(ficgp,"\n# 2nd: Total life expectancy with CI: 't' files\n");
    for (k1=1; k1<= m ; k1 ++) {
+       fprintf(ficgp,"\n# 2nd: Total life expectancy with CI: 't' files ");
+       for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
+         lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate number corresponding to k1 combination */
+         /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+         /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+         /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+         vlv= nbcode[Tvaraff[lv]][lv];
+         fprintf(ficgp," V%d=%d ",k,vlv);
+       }
+       fprintf(ficgp,"\n#\n");
      fprintf(ficgp,"\nset out \"%s_%d.svg\" \n",subdirf2(optionfilefiname,"E_"),k1);
      for(vpopbased=0; vpopbased <= popbased; vpopbased++){ /* Done for vpopbased=0 and vpopbased=1 if popbased==1*/
        if(vpopbased==0)
- Line 4764  plot [%.f:%.f] \"%s\" every :::%d::%d u
+ Line 5630  plot [%.f:%.f] \"%s\" every :::%d::%d u
      } /* vpopbased */
      fprintf(ficgp,"\nset out;set out \"%s_%d.svg\"; replot; set out; \n",subdirf2(optionfilefiname,"E_"),k1); /* Buggy gnuplot */
    } /* k1 */
    /*3eme*/
    for (k1=1; k1<= m ; k1 ++) {
      for (cpt=1; cpt<= nlstate ; cpt ++) {
+       fprintf(ficgp,"\n# 3d: Life expectancy with EXP_ files:  cov=%d state=%d",k1, cpt);
+       for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
+         lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate number corresponding to k1 combination */
+         /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+         /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+         /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+         vlv= nbcode[Tvaraff[lv]][lv];
+         fprintf(ficgp," V%d=%d ",k,vlv);
+       }
+       fprintf(ficgp,"\n#\n");
        /*       k=2+nlstate*(2*cpt-2); */
        k=2+(nlstate+1)*(cpt-1);
        fprintf(ficgp,"\nset out \"%s_%d%d.svg\" \n",subdirf2(optionfilefiname,"EXP_"),cpt,k1);
- Line 4793  plot [%.f:%.f] \"%s\" every :::%d::%d u
+ Line 5671  plot [%.f:%.f] \"%s\" every :::%d::%d u
    /* Survival functions (period) from state i in state j by initial state i */
    for (k1=1; k1<= m ; k1 ++) { /* For each multivariate if any */
      for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each life state */
-       k=3;
+       fprintf(ficgp,"\n#\n#\n# Survival functions in state j : 'LIJ_' files, cov=%d state=%d",k1, cpt);
-       fprintf(ficgp,"\n#\n#\n# Survival functions in state j : 'lij' files, cov=%d state=%d",k1, cpt);
+       for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
+         lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate number corresponding to k1 combination */
+         /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+         /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+         /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+         vlv= nbcode[Tvaraff[lv]][lv];
+         fprintf(ficgp," V%d=%d ",k,vlv);
+       }
+       fprintf(ficgp,"\n#\n");
        fprintf(ficgp,"\nset out \"%s_%d-%d.svg\" \n",subdirf2(optionfilefiname,"LIJ_"),cpt,k1);
        fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Probability to be alive\" \n\
  set ter svg size 640, 480\n\
  unset log y\n\
  plot [%.f:%.f]  ", ageminpar, agemaxpar);
+       k=3;
        for (i=1; i<= nlstate ; i ++){
-         if(i==1)
+         if(i==1){
            fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"PIJ_"));
-         else
+         }else{
            fprintf(ficgp,", '' ");
+         }
          l=(nlstate+ndeath)*(i-1)+1;
          fprintf(ficgp," u ($1==%d ? ($3):1/0):($%d/($%d",k1,k+l+(cpt-1),k+l);
          for (j=2; j<= nlstate+ndeath ; j ++)
- Line 4816  plot [%.f:%.f]  ", ageminpar, agemaxpar)
+ Line 5705  plot [%.f:%.f]  ", ageminpar, agemaxpar)
    } /* end covariate */
    /* Survival functions (period) from state i in state j by final state j */
-   for (k1=1; k1<= m ; k1 ++) { /* For each multivariate if any */
+   for (k1=1; k1<= m ; k1 ++) { /* For each covariate if any */
      for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each inital state  */
-       k=3;
        fprintf(ficgp,"\n#\n#\n# Survival functions in state j and all livestates from state i by final state j: 'lij' files, cov=%d state=%d",k1, cpt);
+       for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
+         lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate number corresponding to k1 combination */
+         /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+         /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+         /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+         vlv= nbcode[Tvaraff[lv]][lv];
+         fprintf(ficgp," V%d=%d ",k,vlv);
+       }
+       fprintf(ficgp,"\n#\n");
        fprintf(ficgp,"\nset out \"%s_%d-%d.svg\" \n",subdirf2(optionfilefiname,"LIJT_"),cpt,k1);
        fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Probability to be alive\" \n\
  set ter svg size 640, 480\n\
  unset log y\n\
  plot [%.f:%.f]  ", ageminpar, agemaxpar);
+       k=3;
        for (j=1; j<= nlstate ; j ++){ /* Lived in state j */
          if(j==1)
            fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"PIJ_"));
- Line 4849  plot [%.f:%.f]  ", ageminpar, agemaxpar)
+ Line 5748  plot [%.f:%.f]  ", ageminpar, agemaxpar)
      } /* end cpt state*/
    } /* end covariate */
-   /* CV preval stable (period) */
+   /* CV preval stable (period) for each covariate */
-   for (k1=1; k1<= m ; k1 ++) { /* For each multivariate if any */
+   for (k1=1; k1<= m ; k1 ++) { /* For each covariate combination (1 to m=2**k), if any covariate is present */
      for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each life state */
-       k=3;
+       fprintf(ficgp,"\n#\n#\n#CV preval stable (period): 'pij' files, covariatecombination#=%d state=%d",k1, cpt);
-       fprintf(ficgp,"\n#\n#\n#CV preval stable (period): 'pij' files, cov=%d state=%d",k1, cpt);
+       for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
+         lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate number corresponding to k1 combination */
+         /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+         /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+         /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+         vlv= nbcode[Tvaraff[lv]][lv];
+         fprintf(ficgp," V%d=%d ",k,vlv);
+       }
+       fprintf(ficgp,"\n#\n");
        fprintf(ficgp,"\nset out \"%s_%d-%d.svg\" \n",subdirf2(optionfilefiname,"P_"),cpt,k1);
        fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Probability\" \n\
  set ter svg size 640, 480\n\
  unset log y\n\
  plot [%.f:%.f]  ", ageminpar, agemaxpar);
+       k=3; /* Offset */
        for (i=1; i<= nlstate ; i ++){
          if(i==1)
            fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"PIJ_"));
- Line 4874  plot [%.f:%.f]  ", ageminpar, agemaxpar)
+ Line 5783  plot [%.f:%.f]  ", ageminpar, agemaxpar)
      } /* end cpt state*/
    } /* end covariate */
+     /* CV back preval stable (period) for each covariate */
+   for (k1=1; k1<= m ; k1 ++) { /* For each covariate combination (1 to m=2**k), if any covariate is present */
+     for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each life state */
+       fprintf(ficgp,"\n#\n#\n#CV Back preval stable (period): 'pij' files, covariatecombination#=%d state=%d",k1, cpt);
+       for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
+         lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate number corresponding to k1 combination */
+         /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+         /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+         /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+         vlv= nbcode[Tvaraff[lv]][lv];
+         fprintf(ficgp," V%d=%d ",k,vlv);
+       }
+       fprintf(ficgp,"\n#\n");
+       fprintf(ficgp,"\nset out \"%s_%d-%d.svg\" \n",subdirf2(optionfilefiname,"PB_"),cpt,k1);
+       fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Probability\" \n\
+ set ter svg size 640, 480\n\
+ unset log y\n\
+ plot [%.f:%.f]  ", ageminpar, agemaxpar);
+       k=3; /* Offset */
+       for (i=1; i<= nlstate ; i ++){
+         if(i==1)
+           fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"PIJB_"));
+         else
+           fprintf(ficgp,", '' ");
+         l=(nlstate+ndeath)*(i-1)+1;
+         fprintf(ficgp," u ($1==%d ? ($3):1/0):($%d/($%d",k1,k+l+(cpt-1),k+l); /* a vérifier */
+         for (j=2; j<= nlstate ; j ++)
+           fprintf(ficgp,"+$%d",k+l+j-1);
+         fprintf(ficgp,")) t \"prev(%d,%d)\" w l",i,cpt);
+       } /* nlstate */
+       fprintf(ficgp,"\nset out\n");
+     } /* end cpt state*/
+   } /* end covariate */
+   if(prevfcast==1){
+   /* Projection from cross-sectional to stable (period) for each covariate */
+     for (k1=1; k1<= m ; k1 ++) { /* For each covariate combination (1 to m=2**k), if any covariate is present */
+       for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each life state */
+         fprintf(ficgp,"\n#\n#\n#Projection of prevalence to stable (period): 'PROJ_' files, covariatecombination#=%d state=%d",k1, cpt);
+         for (k=1; k<=cptcoveff; k++){    /* For each correspondig covariate value  */
+           lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate value corresponding to k1 combination and kth covariate */
+           /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+           /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+           /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+           vlv= nbcode[Tvaraff[lv]][lv];
+           fprintf(ficgp," V%d=%d ",k,vlv);
+         }
+         fprintf(ficgp,"\n#\n");
+         fprintf(ficgp,"# hpijx=probability over h years, hp.jx is weighted by observed prev\n ");
+         fprintf(ficgp,"\nset out \"%s_%d-%d.svg\" \n",subdirf2(optionfilefiname,"PROJ_"),cpt,k1);
+         fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Prevalence\" \n\
+ set ter svg size 640, 480\n\
+ unset log y\n\
+ plot [%.f:%.f]  ", ageminpar, agemaxpar);
+         for (i=1; i<= nlstate+1 ; i ++){  /* nlstate +1 p11 p21 p.1 */
+           /*#  V1  = 1  V2 =  0 yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
+           /*#   1    2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
+           /*# yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
+           /*#   1       2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
+           if(i==1){
+             fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"F_"));
+           }else{
+             fprintf(ficgp,",\\\n '' ");
+           }
+           if(cptcoveff ==0){ /* No covariate */
+             fprintf(ficgp," u 2:("); /* Age is in 2 */
+             /*# yearproj age p11 p21 p31 p.1 p12 p22 p32 p.2 p13 p23 p33 p.3 p14 p24 p34 p.4*/
+             /*#   1       2   3   4   5  6    7  8   9   10  11  12  13  14  15  16  17  18 */
+             if(i==nlstate+1)
+               fprintf(ficgp," $%d/(1.-$%d)) t 'p.%d' with line ", \
++(cpt-1)*(nlstate+1)+1+(i-1),  2+1+(i-1)+(nlstate+1)*nlstate,cpt );
+             else
+               fprintf(ficgp," $%d/(1.-$%d)) t 'p%d%d' with line ", \
++(cpt-1)*(nlstate+1)+1+(i-1),  2+1+(i-1)+(nlstate+1)*nlstate,i,cpt );
+           }else{
+             fprintf(ficgp,"u 6:(("); /* Age is in 6 */
+             /*#  V1  = 1  V2 =  0 yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
+             /*#   1    2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
+             kl=0;
+             for (k=1; k<=cptcoveff; k++){    /* For each covariate  */
+               lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate value corresponding to k1 combination and kth covariate */
+               /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+               /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+               /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+               vlv= nbcode[Tvaraff[lv]][lv];
+               kl++;
+               /* kl=6+(cpt-1)*(nlstate+1)+1+(i-1); /\* 6+(1-1)*(2+1)+1+(1-1)=7, 6+(2-1)(2+1)+1+(1-1)=10 *\/ */
+               /*6+(cpt-1)*(nlstate+1)+1+(i-1)+(nlstate+1)*nlstate; 6+(1-1)*(2+1)+1+(1-1) +(2+1)*2=13 */
+               /*6+1+(i-1)+(nlstate+1)*nlstate; 6+1+(1-1) +(2+1)*2=13 */
+               /* ''  u 6:(($1==1 && $2==0 && $3==2 && $4==0)? $9/(1.-$15) : 1/0):($5==2000? 3:2) t 'p.1' with line lc variable*/
+               if(k==cptcoveff)
+                 if(i==nlstate+1)
+                   fprintf(ficgp,"$%d==%d && $%d==%d)? $%d/(1.-$%d) : 1/0) t 'p.%d' with line ",kl, k,kl+1,nbcode[Tvaraff[lv]][lv], \
++(cpt-1)*(nlstate+1)+1+(i-1),  6+1+(i-1)+(nlstate+1)*nlstate,cpt );
+                 else
+                   fprintf(ficgp,"$%d==%d && $%d==%d)? $%d/(1.-$%d) : 1/0) t 'p%d%d' with line ",kl, k,kl+1,nbcode[Tvaraff[lv]][lv], \
++(cpt-1)*(nlstate+1)+1+(i-1),  6+1+(i-1)+(nlstate+1)*nlstate,i,cpt );
+               else{
+                 fprintf(ficgp,"$%d==%d && $%d==%d && ",kl, k,kl+1,nbcode[Tvaraff[lv]][lv]);
+                 kl++;
+               }
+             } /* end covariate */
+           } /* end if covariate */
+         } /* nlstate */
+         fprintf(ficgp,"\nset out\n");
+       } /* end cpt state*/
+     } /* end covariate */
+   } /* End if prevfcast */
    /* proba elementaires */
    fprintf(ficgp,"\n##############\n#MLE estimated parameters\n#############\n");
    for(i=1,jk=1; i <=nlstate; i++){
- Line 4963  plot [%.f:%.f]  ", ageminpar, agemaxpar)
+ Line 5985  plot [%.f:%.f]  ", ageminpar, agemaxpar)
                 else
                   fprintf(ficgp,"+p%d*%d",i+j+nagesqr-1,nbcode[Tvar[j-2]][codtabm(jk,j-2)]);
               }
-              if(ng != 1){
+            }else{
-                fprintf(ficgp,")/(1");
+              i=i-ncovmodel;
+              if(ng !=1 ) /* For logit formula of log p11 is more difficult to get */
+                fprintf(ficgp," (1.");
+            }
+            if(ng != 1){
+              fprintf(ficgp,")/(1");
-                for(k1=1; k1 <=nlstate; k1++){
+              for(k1=1; k1 <=nlstate; k1++){
-                  if(nagesqr==0)
+                if(nagesqr==0)
-                    fprintf(ficgp,"+exp(p%d+p%d*x",k3+(k1-1)*ncovmodel,k3+(k1-1)*ncovmodel+1);
+                  fprintf(ficgp,"+exp(p%d+p%d*x",k3+(k1-1)*ncovmodel,k3+(k1-1)*ncovmodel+1);
-                  else /* nagesqr =1 */
+                else /* nagesqr =1 */
-                    fprintf(ficgp,"+exp(p%d+p%d*x+p%d*x*x",k3+(k1-1)*ncovmodel,k3+(k1-1)*ncovmodel+1,k3+(k1-1)*ncovmodel+1+nagesqr);
+                  fprintf(ficgp,"+exp(p%d+p%d*x+p%d*x*x",k3+(k1-1)*ncovmodel,k3+(k1-1)*ncovmodel+1,k3+(k1-1)*ncovmodel+1+nagesqr);
-                  ij=1;
+                ij=1;
-                  for(j=3; j <=ncovmodel-nagesqr; j++){
+                for(j=3; j <=ncovmodel-nagesqr; j++){
-                    if(ij <=cptcovage) { /* Bug valgrind */
+                  if(ij <=cptcovage) { /* Bug valgrind */
-                      if((j-2)==Tage[ij]) { /* Bug valgrind */
+                    if((j-2)==Tage[ij]) { /* Bug valgrind */
-                        fprintf(ficgp,"+p%d*%d*x",k3+(k1-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(jk,j-2)]);
+                      fprintf(ficgp,"+p%d*%d*x",k3+(k1-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(jk,j-2)]);
-                        /* fprintf(ficgp,"+p%d*%d*x",k3+(k1-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(jk,Tvar[j-2])]); */
+                      /* fprintf(ficgp,"+p%d*%d*x",k3+(k1-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(jk,Tvar[j-2])]); */
-                        ij++;
+                      ij++;
-                      }
                     }
-                    else
-                      fprintf(ficgp,"+p%d*%d",k3+(k1-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(jk,j-2)]);
                   }
-                  fprintf(ficgp,")");
+                  else
+                    fprintf(ficgp,"+p%d*%d",k3+(k1-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(jk,j-2)]);
                 }
                 fprintf(ficgp,")");
-                if(ng ==2)
-                  fprintf(ficgp," t \"p%d%d\" ", k2,k);
-                else /* ng= 3 */
-                  fprintf(ficgp," t \"i%d%d\" ", k2,k);
-              }else{ /* end ng <> 1 */
-                fprintf(ficgp," t \"logit(p%d%d)\" ", k2,k);
               }
-              if ((k+k2)!= (nlstate*2+ndeath)) fprintf(ficgp,",");
+              fprintf(ficgp,")");
-              i=i+ncovmodel;
+              if(ng ==2)
+                fprintf(ficgp," t \"p%d%d\" ", k2,k);
+              else /* ng= 3 */
+                fprintf(ficgp," t \"i%d%d\" ", k2,k);
+            }else{ /* end ng <> 1 */
+              if( k !=k2) /* logit p11 is hard to draw */
+                fprintf(ficgp," t \"logit(p%d%d)\" ", k2,k);
             }
+            if ((k+k2)!= (nlstate*2+ndeath) && ng != 1)
+              fprintf(ficgp,",");
+            if (ng == 1 && k!=k2 && (k+k2)!= (nlstate*2+ndeath))
+              fprintf(ficgp,",");
+            i=i+ncovmodel;
           } /* end k */
         } /* end k2 */
         fprintf(ficgp,"\n set out\n");
- Line 5054  void prevforecast(char fileres[], double
+ Line 6085  void prevforecast(char fileres[], double
    /* proj1, year, month, day of starting projection
       agemin, agemax range of age
       dateprev1 dateprev2 range of dates during which prevalence is computed
       anproj2 year of en of projection (same day and month as proj1).
+   */
+   int yearp, stepsize, hstepm, nhstepm, j, k, cptcod, i, h, i1;
+   double agec; /* generic age */
+   double agelim, ppij, yp,yp1,yp2,jprojmean,mprojmean,anprojmean;
+   double *popeffectif,*popcount;
+   double ***p3mat;
+   double ***mobaverage;
+   char fileresf[FILENAMELENGTH];
+   agelim=AGESUP;
+   /* Compute observed prevalence between dateprev1 and dateprev2 by counting the number of people
+      in each health status at the date of interview (if between dateprev1 and dateprev2).
+      We still use firstpass and lastpass as another selection.
+   */
+   /* freqsummary(fileres, agemin, agemax, s, agev, nlstate, imx,Tvaraff,nbcode, ncodemax,mint,anint,strstart,\ */
+   /*          firstpass, lastpass,  stepm,  weightopt, model); */
+   prevalence(probs, ageminpar, agemax, s, agev, nlstate, imx, Tvar, nbcode, ncodemax, mint, anint, dateprev1, dateprev2, firstpass, lastpass);
+   strcpy(fileresf,"F_");
+   strcat(fileresf,fileresu);
+   if((ficresf=fopen(fileresf,"w"))==NULL) {
+     printf("Problem with forecast resultfile: %s\n", fileresf);
+     fprintf(ficlog,"Problem with forecast resultfile: %s\n", fileresf);
+   }
+   printf("Computing forecasting: result on file '%s', please wait... \n", fileresf);
+   fprintf(ficlog,"Computing forecasting: result on file '%s', please wait... \n", fileresf);
+   if (cptcoveff==0) ncodemax[cptcoveff]=1;
+   if (mobilav!=0) {
+     mobaverage= ma3x(1, AGESUP,1,NCOVMAX, 1,NCOVMAX);
+     if (movingaverage(probs, ageminpar, fage, mobaverage,mobilav)!=0){
+       fprintf(ficlog," Error in movingaverage mobilav=%d\n",mobilav);
+       printf(" Error in movingaverage mobilav=%d\n",mobilav);
+     }
+   }
+   stepsize=(int) (stepm+YEARM-1)/YEARM;
+   if (stepm<=12) stepsize=1;
+   if(estepm < stepm){
+     printf ("Problem %d lower than %d\n",estepm, stepm);
+   }
+   else  hstepm=estepm;
+   hstepm=hstepm/stepm;
+   yp1=modf(dateintmean,&yp);/* extracts integral of datemean in yp  and
+                                fractional in yp1 */
+   anprojmean=yp;
+   yp2=modf((yp1*12),&yp);
+   mprojmean=yp;
+   yp1=modf((yp2*30.5),&yp);
+   jprojmean=yp;
+   if(jprojmean==0) jprojmean=1;
+   if(mprojmean==0) jprojmean=1;
+   i1=cptcoveff;
+   if (cptcovn < 1){i1=1;}
+   fprintf(ficresf,"# Mean day of interviews %.lf/%.lf/%.lf (%.2f) between %.2f and %.2f \n",jprojmean,mprojmean,anprojmean,dateintmean,dateprev1,dateprev2);
+   fprintf(ficresf,"#****** Routine prevforecast **\n");
+ /*            if (h==(int)(YEARM*yearp)){ */
+   for(cptcov=1, k=0;cptcov<=i1;cptcov++){
+     for(cptcod=1;cptcod<=ncodemax[cptcoveff];cptcod++){
+       k=k+1;
+       fprintf(ficresf,"\n#****** hpijx=probability over h years, hp.jx is weighted by observed prev \n#");
+       for(j=1;j<=cptcoveff;j++) {
+         fprintf(ficresf," V%d (=) %d",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+       }
+       fprintf(ficresf," yearproj age");
+       for(j=1; j<=nlstate+ndeath;j++){
+         for(i=1; i<=nlstate;i++)
+           fprintf(ficresf," p%d%d",i,j);
+         fprintf(ficresf," p.%d",j);
+       }
+       for (yearp=0; yearp<=(anproj2-anproj1);yearp +=stepsize) {
+         fprintf(ficresf,"\n");
+         fprintf(ficresf,"\n# Forecasting at date %.lf/%.lf/%.lf ",jproj1,mproj1,anproj1+yearp);
+         for (agec=fage; agec>=(ageminpar-1); agec--){
+           nhstepm=(int) rint((agelim-agec)*YEARM/stepm);
+           nhstepm = nhstepm/hstepm;
+           p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
+           oldm=oldms;savm=savms;
+           hpxij(p3mat,nhstepm,agec,hstepm,p,nlstate,stepm,oldm,savm, k);
+           for (h=0; h<=nhstepm; h++){
+             if (h*hstepm/YEARM*stepm ==yearp) {
+               fprintf(ficresf,"\n");
+               for(j=1;j<=cptcoveff;j++)
+                 fprintf(ficresf,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+               fprintf(ficresf,"%.f %.f ",anproj1+yearp,agec+h*hstepm/YEARM*stepm);
+             }
+             for(j=1; j<=nlstate+ndeath;j++) {
+               ppij=0.;
+               for(i=1; i<=nlstate;i++) {
+                 if (mobilav==1)
+                   ppij=ppij+p3mat[i][j][h]*mobaverage[(int)agec][i][cptcod];
+                 else {
+                   ppij=ppij+p3mat[i][j][h]*probs[(int)(agec)][i][cptcod];
+                 }
+                 if (h*hstepm/YEARM*stepm== yearp) {
+                   fprintf(ficresf," %.3f", p3mat[i][j][h]);
+                 }
+               } /* end i */
+               if (h*hstepm/YEARM*stepm==yearp) {
+                 fprintf(ficresf," %.3f", ppij);
+               }
+             }/* end j */
+           } /* end h */
+           free_ma3x(p3mat,1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
+         } /* end agec */
+       } /* end yearp */
+     } /* end cptcod */
+   } /* end  cptcov */
+   if (mobilav!=0) free_ma3x(mobaverage,1, AGESUP,1,NCOVMAX, 1,NCOVMAX);
+   fclose(ficresf);
+   printf("End of Computing forecasting \n");
+   fprintf(ficlog,"End of Computing forecasting\n");
+ }
+ /************** Back Forecasting ******************/
+ void prevbackforecast(char fileres[], double anback1, double mback1, double jback1, double ageminpar, double agemax, double dateprev1, double dateprev2, int mobilav, double bage, double fage, int firstpass, int lastpass, double anback2, double p[], int cptcoveff){
+   /* back1, year, month, day of starting backection
+      agemin, agemax range of age
+      dateprev1 dateprev2 range of dates during which prevalence is computed
+      anback2 year of en of backection (same day and month as back1).
    */
    int yearp, stepsize, hstepm, nhstepm, j, k, cptcod, i, h, i1;
    double agec; /* generic age */
- Line 5062  void prevforecast(char fileres[], double
+ Line 6223  void prevforecast(char fileres[], double
    double *popeffectif,*popcount;
    double ***p3mat;
    double ***mobaverage;
-   char fileresf[FILENAMELENGTH];
+   char fileresfb[FILENAMELENGTH];
    agelim=AGESUP;
+   /* Compute observed prevalence between dateprev1 and dateprev2 by counting the number of people
+      in each health status at the date of interview (if between dateprev1 and dateprev2).
+      We still use firstpass and lastpass as another selection.
+   */
+   /* freqsummary(fileres, agemin, agemax, s, agev, nlstate, imx,Tvaraff,nbcode, ncodemax,mint,anint,strstart,\ */
+   /*          firstpass, lastpass,  stepm,  weightopt, model); */
    prevalence(probs, ageminpar, agemax, s, agev, nlstate, imx, Tvar, nbcode, ncodemax, mint, anint, dateprev1, dateprev2, firstpass, lastpass);
-   strcpy(fileresf,"F_");
+   strcpy(fileresfb,"FB_");
-   strcat(fileresf,fileresu);
+   strcat(fileresfb,fileresu);
-   if((ficresf=fopen(fileresf,"w"))==NULL) {
+   if((ficresfb=fopen(fileresfb,"w"))==NULL) {
-     printf("Problem with forecast resultfile: %s\n", fileresf);
+     printf("Problem with back forecast resultfile: %s\n", fileresfb);
-     fprintf(ficlog,"Problem with forecast resultfile: %s\n", fileresf);
+     fprintf(ficlog,"Problem with back forecast resultfile: %s\n", fileresfb);
    }
-   printf("Computing forecasting: result on file '%s' \n", fileresf);
+   printf("Computing back forecasting: result on file '%s', please wait... \n", fileresfb);
-   fprintf(ficlog,"Computing forecasting: result on file '%s' \n", fileresf);
+   fprintf(ficlog,"Computing back forecasting: result on file '%s', please wait... \n", fileresfb);
    if (cptcoveff==0) ncodemax[cptcoveff]=1;
- Line 5107  void prevforecast(char fileres[], double
+ Line 6274  void prevforecast(char fileres[], double
    i1=cptcoveff;
    if (cptcovn < 1){i1=1;}
-   fprintf(ficresf,"# Mean day of interviews %.lf/%.lf/%.lf (%.2f) between %.2f and %.2f \n",jprojmean,mprojmean,anprojmean,dateintmean,dateprev1,dateprev2);
+   fprintf(ficresfb,"# Mean day of interviews %.lf/%.lf/%.lf (%.2f) between %.2f and %.2f \n",jprojmean,mprojmean,anprojmean,dateintmean,dateprev1,dateprev2);
-   fprintf(ficresf,"#****** Routine prevforecast **\n");
+   fprintf(ficresfb,"#****** Routine prevbackforecast **\n");
  /*            if (h==(int)(YEARM*yearp)){ */
    for(cptcov=1, k=0;cptcov<=i1;cptcov++){
      for(cptcod=1;cptcod<=ncodemax[cptcoveff];cptcod++){
        k=k+1;
-       fprintf(ficresf,"\n#******");
+       fprintf(ficresfb,"\n#****** hbijx=probability over h years, hp.jx is weighted by observed prev \n#");
        for(j=1;j<=cptcoveff;j++) {
-         fprintf(ficresf," V%d=%d, hpijx=probability over h years, hp.jx is weighted by observed prev ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         fprintf(ficresfb," V%d (=) %d",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
        }
-       fprintf(ficresf,"******\n");
+       fprintf(ficresfb," yearbproj age");
-       fprintf(ficresf,"# Covariate valuofcovar yearproj age");
        for(j=1; j<=nlstate+ndeath;j++){
          for(i=1; i<=nlstate;i++)
-           fprintf(ficresf," p%d%d",i,j);
+           fprintf(ficresfb," p%d%d",i,j);
-         fprintf(ficresf," p.%d",j);
+         fprintf(ficresfb," p.%d",j);
        }
-       for (yearp=0; yearp<=(anproj2-anproj1);yearp +=stepsize) {
+       for (yearp=0; yearp>=(anback2-anback1);yearp -=stepsize) {
-         fprintf(ficresf,"\n");
+      /* for (yearp=0; yearp<=(anproj2-anproj1);yearp +=stepsize) {  */
-         fprintf(ficresf,"\n# Forecasting at date %.lf/%.lf/%.lf ",jproj1,mproj1,anproj1+yearp);
+         fprintf(ficresfb,"\n");
+         fprintf(ficresfb,"\n# Back Forecasting at date %.lf/%.lf/%.lf ",jback1,mback1,anback1+yearp);
          for (agec=fage; agec>=(ageminpar-1); agec--){
            nhstepm=(int) rint((agelim-agec)*YEARM/stepm);
            nhstepm = nhstepm/hstepm;
            p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
            oldm=oldms;savm=savms;
-           hpxij(p3mat,nhstepm,agec,hstepm,p,nlstate,stepm,oldm,savm, k);
+           hbxij(p3mat,nhstepm,agec,hstepm,p,nlstate,stepm,oldm,savm, k);
            for (h=0; h<=nhstepm; h++){
              if (h*hstepm/YEARM*stepm ==yearp) {
-               fprintf(ficresf,"\n");
+               fprintf(ficresfb,"\n");
                for(j=1;j<=cptcoveff;j++)
-                 fprintf(ficresf,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+                 fprintf(ficresfb,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-               fprintf(ficresf,"%.f %.f ",anproj1+yearp,agec+h*hstepm/YEARM*stepm);
+               fprintf(ficresfb,"%.f %.f ",anback1+yearp,agec+h*hstepm/YEARM*stepm);
              }
              for(j=1; j<=nlstate+ndeath;j++) {
                ppij=0.;
- Line 5153  void prevforecast(char fileres[], double
+ Line 6319  void prevforecast(char fileres[], double
                    ppij=ppij+p3mat[i][j][h]*probs[(int)(agec)][i][cptcod];
                  }
                  if (h*hstepm/YEARM*stepm== yearp) {
-                   fprintf(ficresf," %.3f", p3mat[i][j][h]);
+                   fprintf(ficresfb," %.3f", p3mat[i][j][h]);
                  }
                } /* end i */
                if (h*hstepm/YEARM*stepm==yearp) {
-                 fprintf(ficresf," %.3f", ppij);
+                 fprintf(ficresfb," %.3f", ppij);
                }
              }/* end j */
            } /* end h */
- Line 5169  void prevforecast(char fileres[], double
+ Line 6335  void prevforecast(char fileres[], double
    if (mobilav!=0) free_ma3x(mobaverage,1, AGESUP,1,NCOVMAX, 1,NCOVMAX);
-   fclose(ficresf);
+   fclose(ficresfb);
+   printf("End of Computing Back forecasting \n");
+   fprintf(ficlog,"End of Computing Back forecasting\n");
  }
  /************** Forecasting *****not tested NB*************/
- Line 5989  int calandcheckages(int imx, int maxwav,
+ Line 7158  int calandcheckages(int imx, int maxwav,
      for(m=2; (m<= maxwav); m++) {
        if (((int)mint[m][i]== 99) && (s[m][i] <= nlstate)){
          anint[m][i]=9999;
-         s[m][i]=-1;
+         if (s[m][i] != -2) /* Keeping initial status of unknown vital status */
+           s[m][i]=-1;
        }
        if((int)moisdc[i]==99 && (int)andc[i]==9999 && s[m][i]>nlstate){
          *nberr = *nberr + 1;
- Line 6009  int calandcheckages(int imx, int maxwav,
+ Line 7179  int calandcheckages(int imx, int maxwav,
    for (i=1; i<=imx; i++)  {
      agedc[i]=(moisdc[i]/12.+andc[i])-(moisnais[i]/12.+annais[i]);
      for(m=firstpass; (m<= lastpass); m++){
-       if(s[m][i] >0 || s[m][i]==-2 || s[m][i]==-4 || s[m][i]==-5){
+       if(s[m][i] >0  || s[m][i]==-1 || s[m][i]==-2 || s[m][i]==-4 || s[m][i]==-5){ /* What if s[m][i]=-1 */
          if (s[m][i] >= nlstate+1) {
            if(agedc[i]>0){
              if((int)moisdc[i]!=99 && (int)andc[i]!=9999){
                agev[m][i]=agedc[i];
-           /*if(moisdc[i]==99 && andc[i]==9999) s[m][i]=-1;*/
+               /*if(moisdc[i]==99 && andc[i]==9999) s[m][i]=-1;*/
              }else {
                if ((int)andc[i]!=9999){
                  nbwarn++;
- Line 6024  int calandcheckages(int imx, int maxwav,
+ Line 7194  int calandcheckages(int imx, int maxwav,
                }
              }
            } /* agedc > 0 */
-         }
+         } /* end if */
          else if(s[m][i] !=9){ /* Standard case, age in fractional
                                   years but with the precision of a month */
            agev[m][i]=(mint[m][i]/12.+1./24.+anint[m][i])-(moisnais[i]/12.+1./24.+annais[i]);
- Line 6040  int calandcheckages(int imx, int maxwav,
+ Line 7210  int calandcheckages(int imx, int maxwav,
            }
            /*agev[m][i]=anint[m][i]-annais[i];*/
            /*     agev[m][i] = age[i]+2*m;*/
-         }
+         } /* en if 9*/
          else { /* =9 */
+           /* printf("Debug num[%d]=%ld s[%d][%d]=%d\n",i,num[i], m,i, s[m][i]); */
            agev[m][i]=1;
            s[m][i]=-1;
          }
        }
-       else /*= 0 Unknown */
+       else if(s[m][i]==0) /*= 0 Unknown */
          agev[m][i]=1;
-     }
+       else{
+         printf("Warning, num[%d]=%ld, s[%d][%d]=%d\n", i, num[i], m, i,s[m][i]);
+         fprintf(ficlog, "Warning, num[%d]=%ld, s[%d][%d]=%d\n", i, num[i], m, i,s[m][i]);
+         agev[m][i]=0;
+       }
+     } /* End for lastpass */
    }
    for (i=1; i<=imx; i++)  {
      for(m=firstpass; (m<=lastpass); m++){
        if (s[m][i] > (nlstate+ndeath)) {
- Line 6276  void syscompilerinfo(int logged)
+ Line 7452  void syscompilerinfo(int logged)
   }
- int prevalence_limit(double *p, double **prlim, double ageminpar, double agemaxpar){
+  int prevalence_limit(double *p, double **prlim, double ageminpar, double agemaxpar, double ftolpl, int *ncvyearp){
    /*--------------- Prevalence limit  (period or stable prevalence) --------------*/
    int i, j, k, i1 ;
-   double ftolpl = 1.e-10;
+   /* double ftolpl = 1.e-10; */
    double age, agebase, agelim;
+   double tot;
-     strcpy(filerespl,"PL_");
+   strcpy(filerespl,"PL_");
-     strcat(filerespl,fileresu);
+   strcat(filerespl,fileresu);
-     if((ficrespl=fopen(filerespl,"w"))==NULL) {
+   if((ficrespl=fopen(filerespl,"w"))==NULL) {
-       printf("Problem with period (stable) prevalence resultfile: %s\n", filerespl);return 1;
+     printf("Problem with period (stable) prevalence resultfile: %s\n", filerespl);return 1;
-       fprintf(ficlog,"Problem with period (stable) prevalence resultfile: %s\n", filerespl);return 1;
+     fprintf(ficlog,"Problem with period (stable) prevalence resultfile: %s\n", filerespl);return 1;
-     }
+   }
-     printf("Computing period (stable) prevalence: result on file '%s' \n", filerespl);
+   printf("Computing period (stable) prevalence: result on file '%s' \n", filerespl);
-     fprintf(ficlog,"Computing period (stable) prevalence: result on file '%s' \n", filerespl);
+   fprintf(ficlog,"Computing period (stable) prevalence: result on file '%s' \n", filerespl);
-     pstamp(ficrespl);
+   pstamp(ficrespl);
-     fprintf(ficrespl,"# Period (stable) prevalence \n");
+   fprintf(ficrespl,"# Period (stable) prevalence. Precision given by ftolpl=%g \n", ftolpl);
-     fprintf(ficrespl,"#Age ");
+   fprintf(ficrespl,"#Age ");
-     for(i=1; i<=nlstate;i++) fprintf(ficrespl,"%d-%d ",i,i);
+   for(i=1; i<=nlstate;i++) fprintf(ficrespl,"%d-%d ",i,i);
-     fprintf(ficrespl,"\n");
+   fprintf(ficrespl,"\n");
      /* prlim=matrix(1,nlstate,1,nlstate);*/ /* back in main */
- Line 6326  int prevalence_limit(double *p, double *
+ Line 7503  int prevalence_limit(double *p, double *
          for(j=1;j<=cptcoveff;j++) {
            fprintf(ficrespl,"V%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
          }
-         for(i=1; i<=nlstate;i++) fprintf(ficrespl,"%d-%d ",i,i);
+         for(i=1; i<=nlstate;i++) fprintf(ficrespl,"  %d-%d   ",i,i);
-         fprintf(ficrespl,"\n");
+         fprintf(ficrespl,"Total Years_to_converge\n");
          for (age=agebase; age<=agelim; age++){
          /* for (age=agebase; age<=agebase; age++){ */
-           prevalim(prlim, nlstate, p, age, oldm, savm,ftolpl,k);
+           prevalim(prlim, nlstate, p, age, oldm, savm, ftolpl, ncvyearp, k);
            fprintf(ficrespl,"%.0f ",age );
            for(j=1;j<=cptcoveff;j++)
              fprintf(ficrespl,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-           for(i=1; i<=nlstate;i++)
+           tot=0.;
+           for(i=1; i<=nlstate;i++){
+             tot +=  prlim[i][i];
              fprintf(ficrespl," %.5f", prlim[i][i]);
-           fprintf(ficrespl,"\n");
+           }
+           fprintf(ficrespl," %.3f %d\n", tot, *ncvyearp);
+         } /* Age */
+         /* was end of cptcod */
+     } /* cptcov */
+         return 0;
+ }
+  int back_prevalence_limit(double *p, double **bprlim, double ageminpar, double agemaxpar, double ftolpl, int *ncvyearp){
+   /*--------------- Back Prevalence limit  (period or stable prevalence) --------------*/
+   int i, j, k, i1 ;
+   /* double ftolpl = 1.e-10; */
+   double age, agebase, agelim;
+   double tot;
+   strcpy(fileresplb,"PLB_");
+   strcat(fileresplb,fileresu);
+   if((ficresplb=fopen(fileresplb,"w"))==NULL) {
+     printf("Problem with period (stable) back prevalence resultfile: %s\n", fileresplb);return 1;
+     fprintf(ficlog,"Problem with period (stable) back prevalence resultfile: %s\n", fileresplb);return 1;
+   }
+   printf("Computing period (stable) back prevalence: result on file '%s' \n", fileresplb);
+   fprintf(ficlog,"Computing period (stable) back prevalence: result on file '%s' \n", fileresplb);
+   pstamp(ficresplb);
+   fprintf(ficresplb,"# Period (stable) back prevalence. Precision given by ftolpl=%g \n", ftolpl);
+   fprintf(ficresplb,"#Age ");
+   for(i=1; i<=nlstate;i++) fprintf(ficresplb,"%d-%d ",i,i);
+   fprintf(ficresplb,"\n");
+     /* prlim=matrix(1,nlstate,1,nlstate);*/ /* back in main */
+     agebase=ageminpar;
+     agelim=agemaxpar;
+     i1=pow(2,cptcoveff);
+     if (cptcovn < 1){i1=1;}
+     for(cptcov=1,k=0;cptcov<=i1;cptcov++){
+     /* for(cptcov=1,k=0;cptcov<=1;cptcov++){ */
+       //for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){
+         k=k+1;
+         /* to clean */
+         //printf("cptcov=%d cptcod=%d codtab=%d\n",cptcov, cptcod,codtabm(cptcod,cptcov));
+         fprintf(ficresplb,"#******");
+         printf("#******");
+         fprintf(ficlog,"#******");
+         for(j=1;j<=cptcoveff;j++) {
+           fprintf(ficresplb," V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+           printf(" V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+           fprintf(ficlog," V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         }
+         fprintf(ficresplb,"******\n");
+         printf("******\n");
+         fprintf(ficlog,"******\n");
+         fprintf(ficresplb,"#Age ");
+         for(j=1;j<=cptcoveff;j++) {
+           fprintf(ficresplb,"V%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         }
+         for(i=1; i<=nlstate;i++) fprintf(ficresplb,"  %d-%d   ",i,i);
+         fprintf(ficresplb,"Total Years_to_converge\n");
+         for (age=agebase; age<=agelim; age++){
+         /* for (age=agebase; age<=agebase; age++){ */
+           bprevalim(bprlim, nlstate, p, age, oldm, savm, ftolpl, ncvyearp, k);
+           fprintf(ficresplb,"%.0f ",age );
+           for(j=1;j<=cptcoveff;j++)
+             fprintf(ficresplb,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+           tot=0.;
+           for(i=1; i<=nlstate;i++){
+             tot +=  bprlim[i][i];
+             fprintf(ficresplb," %.5f", bprlim[i][i]);
+           }
+           fprintf(ficresplb," %.3f %d\n", tot, *ncvyearp);
          } /* Age */
          /* was end of cptcod */
      } /* cptcov */
- Line 6414  int hPijx(double *p, int bage, int fage)
+ Line 7666  int hPijx(double *p, int bage, int fage)
          return 0;
  }
+  int hBijx(double *p, int bage, int fage){
+     /*------------- h Bij x at various ages ------------*/
+   int stepsize;
+   int agelim;
+   int hstepm;
+   int nhstepm;
+   int h, i, i1, j, k;
+   double agedeb;
+   double ***p3mat;
+     strcpy(filerespijb,"PIJB_");  strcat(filerespijb,fileresu);
+     if((ficrespijb=fopen(filerespijb,"w"))==NULL) {
+       printf("Problem with Pij back resultfile: %s\n", filerespijb); return 1;
+       fprintf(ficlog,"Problem with Pij back resultfile: %s\n", filerespijb); return 1;
+     }
+     printf("Computing pij back: result on file '%s' \n", filerespijb);
+     fprintf(ficlog,"Computing pij back: result on file '%s' \n", filerespijb);
+     stepsize=(int) (stepm+YEARM-1)/YEARM;
+     /*if (stepm<=24) stepsize=2;*/
+     agelim=AGESUP;
+     hstepm=stepsize*YEARM; /* Every year of age */
+     hstepm=hstepm/stepm; /* Typically 2 years, = 2/6 months = 4 */
+     /* hstepm=1;   aff par mois*/
+     pstamp(ficrespijb);
+     fprintf(ficrespijb,"#****** h Pij x Back Probability to be in state i at age x-h being in j at x ");
+     i1= pow(2,cptcoveff);
+    /* for(cptcov=1,k=0;cptcov<=i1;cptcov++){ */
+    /*    /\*for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){*\/ */
+    /*   k=k+1;  */
+     for (k=1; k <= (int) pow(2,cptcoveff); k++){
+       fprintf(ficrespijb,"\n#****** ");
+       for(j=1;j<=cptcoveff;j++)
+         fprintf(ficrespijb,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+       fprintf(ficrespijb,"******\n");
+       /* for (agedeb=fage; agedeb>=bage; agedeb--){ /\* If stepm=6 months *\/ */
+       for (agedeb=bage; agedeb<=fage; agedeb++){ /* If stepm=6 months */
+         nhstepm=(int) rint((agelim-agedeb)*YEARM/stepm); /* Typically 20 years = 20*12/6=40 */
+         nhstepm = nhstepm/hstepm; /* Typically 40/4=10 */
+         /*        nhstepm=nhstepm*YEARM; aff par mois*/
+         p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
+         oldm=oldms;savm=savms;
+         hbxij(p3mat,nhstepm,agedeb,hstepm,p,nlstate,stepm,oldm,savm, k);
+         fprintf(ficrespijb,"# Cov Agex agex-h hpijx with i,j=");
+         for(i=1; i<=nlstate;i++)
+           for(j=1; j<=nlstate+ndeath;j++)
+             fprintf(ficrespijb," %1d-%1d",i,j);
+         fprintf(ficrespijb,"\n");
+         for (h=0; h<=nhstepm; h++){
+           /*agedebphstep = agedeb + h*hstepm/YEARM*stepm;*/
+           fprintf(ficrespijb,"%d %3.f %3.f",k, agedeb, agedeb - h*hstepm/YEARM*stepm );
+           /* fprintf(ficrespijb,"%d %3.f %3.f",k, agedeb, agedeb + h*hstepm/YEARM*stepm ); */
+           for(i=1; i<=nlstate;i++)
+             for(j=1; j<=nlstate+ndeath;j++)
+               fprintf(ficrespijb," %.5f", p3mat[i][j][h]);
+           fprintf(ficrespijb,"\n");
+         }
+         free_ma3x(p3mat,1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
+         fprintf(ficrespijb,"\n");
+       }
+       /*}*/
+     }
+         return 0;
+ }
  /***********************************************/
  /**************** Main Program *****************/
- Line 6430  int main(int argc, char *argv[])
+ Line 7754  int main(int argc, char *argv[])
  #endif
    int movingaverage(double ***probs, double bage,double fage, double ***mobaverage, int mobilav);
    int i,j, k, n=MAXN,iter=0,m,size=100, cptcod;
+   int ncvyear=0; /* Number of years needed for the period prevalence to converge */
    int jj, ll, li, lj, lk;
    int numlinepar=0; /* Current linenumber of parameter file */
    int num_filled;
- Line 6465  int main(int argc, char *argv[])
+ Line 7789  int main(int argc, char *argv[])
    int *tab;
    int mobilavproj=0 , prevfcast=0 ; /* moving average of prev, If prevfcast=1 prevalence projection */
+   int backcast=0;
    int mobilav=0,popforecast=0;
    int hstepm=0, nhstepm=0;
    int agemortsup;
- Line 6475  int main(int argc, char *argv[])
+ Line 7800  int main(int argc, char *argv[])
    double bage=0, fage=110., age, agelim=0., agebase=0.;
    double ftolpl=FTOL;
    double **prlim;
+   double **bprlim;
    double ***param; /* Matrix of parameters */
    double  *p;
    double **matcov; /* Matrix of covariance */
+   double **hess; /* Hessian matrix */
    double ***delti3; /* Scale */
    double *delti; /* Scale */
    double ***eij, ***vareij;
- Line 6485  int main(int argc, char *argv[])
+ Line 7812  int main(int argc, char *argv[])
    double *epj, vepp;
    double dateprev1, dateprev2,jproj1=1,mproj1=1,anproj1=2000,jproj2=1,mproj2=1,anproj2=2000;
+   double jback1=1,mback1=1,anback1=2000,jback2=1,mback2=1,anback2=2000;
    double **ximort;
    char *alph[]={"a","a","b","c","d","e"}, str[4]="1234";
    int *dcwave;
- Line 6537  int main(int argc, char *argv[])
+ Line 7866  int main(int argc, char *argv[])
    printf("\nIMaCh version %s, %s\n%s",version, copyright, fullversion);
    if(argc <=1){
      printf("\nEnter the parameter file name: ");
-     fgets(pathr,FILENAMELENGTH,stdin);
+     if(!fgets(pathr,FILENAMELENGTH,stdin)){
+       printf("ERROR Empty parameter file name\n");
+       goto end;
+     }
      i=strlen(pathr);
      if(pathr[i-1]=='\n')
        pathr[i-1]='\0';
      i=strlen(pathr);
-     if(pathr[i-1]==' ') /* This may happen when dragging on oS/X! */
+     if(i >= 1 && pathr[i-1]==' ') {/* This may happen when dragging on oS/X! */
        pathr[i-1]='\0';
-    for (tok = pathr; tok != NULL; ){
+     }
+     i=strlen(pathr);
+     if( i==0 ){
+       printf("ERROR Empty parameter file name\n");
+       goto end;
+     }
+     for (tok = pathr; tok != NULL; ){
        printf("Pathr |%s|\n",pathr);
        while ((val = strsep(&tok, "\"" )) != NULL && *val == '\0');
        printf("val= |%s| pathr=%s\n",val,pathr);
- Line 6680  int main(int argc, char *argv[])
+ Line 8018  int main(int argc, char *argv[])
    if((num_filled=sscanf(line,"ftol=%lf stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d\n", \
                          &ftol, &stepm, &ncovcol, &nlstate, &ndeath, &maxwav, &mle, &weightopt)) !=EOF){
      if (num_filled != 8) {
-       printf("Not 8\n");
+       printf("Not 8 parameters, for example:ftol=1.e-8 stepm=12 ncovcol=2 nlstate=2 ndeath=1 maxwav=3 mle=1 weight=1\n");
+       printf("but line=%s\n",line);
      }
      printf("ftol=%e stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d\n",ftol, stepm, ncovcol, nlstate,ndeath, maxwav, mle, weightopt);
    }
+   /* ftolpl=6*ftol*1.e5; /\* 6.e-3 make convergences in less than 80 loops for the prevalence limit *\/ */
+   /*ftolpl=6.e-4; *//* 6.e-3 make convergences in less than 80 loops for the prevalence limit */
    /* Third parameter line */
    while(fgets(line, MAXLINE, ficpar)) {
      /* If line starts with a # it is a comment */
- Line 6714  int main(int argc, char *argv[])
+ Line 8054  int main(int argc, char *argv[])
        }
      }
      /* printf(" model=1+age%s modeltemp= %s, model=%s\n",model, modeltemp, model);fflush(stdout); */
+     printf("model=1+age+%s\n",model);fflush(stdout);
    }
    /* fscanf(ficpar,"title=%s datafile=%s lastobs=%d firstpass=%d lastpass=%d\nftol=%lf stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d model=1+age+%s\n",title, datafile, &lastobs, &firstpass,&lastpass,&ftol, &stepm, &ncovcol, &nlstate,&ndeath, &maxwav, &mle, &weightopt,model); */
    /* numlinepar=numlinepar+3; /\* In general *\/ */
    /* printf("title=%s datafile=%s lastobs=%d firstpass=%d lastpass=%d\nftol=%e stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d\nmodel=1+age+%s\n", title, datafile, lastobs, firstpass,lastpass,ftol, stepm, ncovcol, nlstate,ndeath, maxwav, mle, weightopt,model); */
-   if(model[strlen(model)-1]=='.') /* Suppressing leading dot in the model */
+   fprintf(ficparo,"title=%s datafile=%s lastobs=%d firstpass=%d lastpass=%d\nftol=%e stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d\nmodel=1+age+%s.\n", title, datafile, lastobs, firstpass,lastpass,ftol,stepm,ncovcol,nlstate,ndeath,maxwav, mle, weightopt,model);
-     model[strlen(model)-1]='\0';
+   fprintf(ficlog,"title=%s datafile=%s lastobs=%d firstpass=%d lastpass=%d\nftol=%e stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d\nmodel=1+age+%s.\n", title, datafile, lastobs, firstpass,lastpass,ftol,stepm,ncovcol,nlstate,ndeath,maxwav, mle, weightopt,model);
-   fprintf(ficparo,"title=%s datafile=%s lastobs=%d firstpass=%d lastpass=%d\nftol=%e stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d\nmodel=1+age%s.\n", title, datafile, lastobs, firstpass,lastpass,ftol,stepm,ncovcol,nlstate,ndeath,maxwav, mle, weightopt,model);
-   fprintf(ficlog,"title=%s datafile=%s lastobs=%d firstpass=%d lastpass=%d\nftol=%e stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle=%d weight=%d\nmodel=1+age%s.\n", title, datafile, lastobs, firstpass,lastpass,ftol,stepm,ncovcol,nlstate,ndeath,maxwav, mle, weightopt,model);
    fflush(ficlog);
    /* if(model[0]=='#'|| model[0]== '\0'){ */
    if(model[0]=='#'){
- Line 6786  int main(int argc, char *argv[])
+ Line 8125  int main(int argc, char *argv[])
      fprintf(ficlog," You chose mle=-3, look at file %s for a template of covariance matrix \n",filereso);
      param= ma3x(1,nlstate,1,nlstate+ndeath-1,1,ncovmodel);
      matcov=matrix(1,npar,1,npar);
+     hess=matrix(1,npar,1,npar);
    }
    else{
      /* Read guessed parameters */
- Line 6894  run imach with mle=-1 to get a correct t
+ Line 8234  run imach with mle=-1 to get a correct t
      ungetc(c,ficpar);
      matcov=matrix(1,npar,1,npar);
+     hess=matrix(1,npar,1,npar);
      for(i=1; i <=npar; i++)
        for(j=1; j <=npar; j++) matcov[i][j]=0.;
- Line 7032  Please run with mle=-1 to get a correct
+ Line 8373  Please run with mle=-1 to get a correct
    free_vector(annais,1,n);
    /* free_matrix(mint,1,maxwav,1,n);
       free_matrix(anint,1,maxwav,1,n);*/
-   free_vector(moisdc,1,n);
+   /* free_vector(moisdc,1,n); */
-   free_vector(andc,1,n);
+   /* free_vector(andc,1,n); */
    /* */
    wav=ivector(1,imx);
-   dh=imatrix(1,lastpass-firstpass+1,1,imx);
+   /* dh=imatrix(1,lastpass-firstpass+1,1,imx); */
-   bh=imatrix(1,lastpass-firstpass+1,1,imx);
+   /* bh=imatrix(1,lastpass-firstpass+1,1,imx); */
-   mw=imatrix(1,lastpass-firstpass+1,1,imx);
+   /* mw=imatrix(1,lastpass-firstpass+1,1,imx); */
+   dh=imatrix(1,lastpass-firstpass+2,1,imx); /* We are adding a wave if status is unknown at last wave but death occurs after last wave.*/
+   bh=imatrix(1,lastpass-firstpass+2,1,imx);
+   mw=imatrix(1,lastpass-firstpass+2,1,imx);
    /* Concatenates waves */
+   /* Concatenates waves: wav[i] is the number of effective (useful waves) of individual i.
+      Death is a valid wave (if date is known).
+      mw[mi][i] is the number of (mi=1 to wav[i]) effective wave out of mi of individual i
+      dh[m][i] or dh[mw[mi][i]][i] is the delay between two effective waves m=mw[mi][i]
+      and mw[mi+1][i]. dh depends on stepm.
+   */
    concatwav(wav, dh, bh, mw, s, agedc, agev,  firstpass, lastpass, imx, nlstate, stepm);
    /* */
+   free_vector(moisdc,1,n);
+   free_vector(andc,1,n);
    /* Routine tricode is to calculate cptcoveff (real number of unique covariates) and to associate covariable number and modality */
    nbcode=imatrix(0,NCOVMAX,0,NCOVMAX);
- Line 7052  Please run with mle=-1 to get a correct
+ Line 8406  Please run with mle=-1 to get a correct
    Ndum =ivector(-1,NCOVMAX);
    if (ncovmodel-nagesqr > 2 ) /* That is if covariate other than cst, age and age*age */
      tricode(Tvar,nbcode,imx, Ndum); /**< Fills nbcode[Tvar[j]][l]; */
-   /* Nbcode gives the value of the lth modality of jth covariate, in
+   /* Nbcode gives the value of the lth modality (currently 1 to 2) of jth covariate, in
       V2+V1*age, there are 3 covariates Tvar[2]=1 (V1).*/
-   /* 1 to ncodemax[j] is the maximum value of this jth covariate */
+   /* 1 to ncodemax[j] which is the maximum value of this jth covariate */
    /*  codtab=imatrix(1,100,1,10);*/ /* codtab[h,k]=( (h-1) - mod(k-1,2**(k-1) )/2**(k-1) */
    /*printf(" codtab[1,1],codtab[100,10]=%d,%d\n", codtab[1][1],codtabm(100,10));*/
    /* codtab gives the value 1 or 2 of the hth combination of k covariates (1 or 2).*/
+   /* nbcode[Tvaraff[j]][codtabm(h,j)]) : if there are only 2 modalities for a covariate j,
+    * codtabm(h,j) gives its value classified at position h and nbcode gives how it is coded
+    * (currently 0 or 1) in the data.
+    * In a loop on h=1 to 2**k, and a loop on j (=1 to k), we get the value of
+    * corresponding modality (h,j).
+    */
    h=0;
- Line 7068  Please run with mle=-1 to get a correct
+ Line 8429  Please run with mle=-1 to get a correct
    m=pow(2,cptcoveff);
            /**< codtab(h,k)  k   = codtab[h,k]=( (h-1) - mod(k-1,2**(k-1) )/2**(k-1) + 1
-            * For k=4 covariates, h goes from 1 to 2**k
+            * For k=4 covariates, h goes from 1 to m=2**k
-            * codtabm(h,k)=  1 & (h-1) >> (k-1) ;
+            * codtabm(h,k)=  (1 & (h-1) >> (k-1)) + 1;
+            * #define codtabm(h,k)  (1 & (h-1) >> (k-1))+1
             *     h\k   1     2     3     4
             *______________________________
             *     1 i=1 1 i=1 1 i=1 1 i=1 1
- Line 7089  Please run with mle=-1 to get a correct
+ Line 8451  Please run with mle=-1 to get a correct
             *    15 i=8 1     2     2     2
             *    16     2     2     2     2
             */
-   for(h=1; h <=100 ;h++){
+   /* How to do the opposite? From combination h (=1 to 2**k) how to get the value on the covariates? */
-     /* printf("h=%2d ", h); */
+      /* from h=5 and m, we get then number of covariates k=log(m)/log(2)=4
-      /* for(k=1; k <=10; k++){ */
+      * and the value of each covariate?
-        /* printf("k=%d %d ",k,codtabm(h,k)); */
+      * V1=1, V2=1, V3=2, V4=1 ?
-      /*   codtab[h][k]=codtabm(h,k); */
+      * h-1=4 and 4 is 0100 or reverse 0010, and +1 is 1121 ok.
-      /* } */
+      * h=6, 6-1=5, 5 is 0101, 1010, 2121, V1=2nd, V2=1st, V3=2nd, V4=1st.
-      /* printf("\n"); */
+      * In order to get the real value in the data, we use nbcode
-   }
+      * nbcode[Tvar[3][2nd]]=1 and nbcode[Tvar[4][1]]=0
+      * We are keeping this crazy system in order to be able (in the future?)
+      * to have more than 2 values (0 or 1) for a covariate.
+      * #define codtabm(h,k)  (1 & (h-1) >> (k-1))+1
+      * h=6, k=2? h-1=5=0101, reverse 1010, +1=2121, k=2nd position: value is 1: codtabm(6,2)=1
+      *              bbbbbbbb
+      *              76543210
+      *   h-1        00000101 (6-1=5)
+      *(h-1)>>(k-1)= 00000001 >> (2-1) = 1 right shift
+      *           &
+      *     1        00000001 (1)
+      *              00000001        = 1 & ((h-1) >> (k-1))
+      *          +1= 00000010 =2
+      *
+      * h=14, k=3 => h'=h-1=13, k'=k-1=2
+      *          h'      1101 =2^3+2^2+0x2^1+2^0
+      *    >>k'            11
+      *          &   00000001
+      *            = 00000001
+      *      +1    = 00000010=2    =  codtabm(14,3)
+      * Reverse h=6 and m=16?
+      * cptcoveff=log(16)/log(2)=4 covariate: 6-1=5=0101 reversed=1010 +1=2121 =>V1=2, V2=1, V3=2, V4=1.
+      * for (j=1 to cptcoveff) Vj=decodtabm(j,h,cptcoveff)
+      * decodtabm(h,j,cptcoveff)= (((h-1) >> (j-1)) & 1) +1
+      * decodtabm(h,j,cptcoveff)= (h <= (1<<cptcoveff)?(((h-1) >> (j-1)) & 1) +1 : -1)
+      * V3=decodtabm(14,3,2**4)=2
+      *          h'=13   1101 =2^3+2^2+0x2^1+2^0
+      *(h-1) >> (j-1)    0011 =13 >> 2
+      *          &1 000000001
+      *           = 000000001
+      *         +1= 000000010 =2
+      *                  2211
+      *                  V1=1+1, V2=0+1, V3=1+1, V4=1+1
+      *                  V3=2
+      */
+   /* /\* for(h=1; h <=100 ;h++){  *\/ */
+   /*   /\* printf("h=%2d ", h); *\/ */
+   /*    /\* for(k=1; k <=10; k++){ *\/ */
+   /*      /\* printf("k=%d %d ",k,codtabm(h,k)); *\/ */
+   /*    /\*   codtab[h][k]=codtabm(h,k); *\/ */
+   /*    /\* } *\/ */
+   /*    /\* printf("\n"); *\/ */
+   /* } */
    /* for(k=1;k<=cptcoveff; k++){ /\* scans any effective covariate *\/ */
    /*   for(i=1; i <=pow(2,cptcoveff-k);i++){ /\* i=1 to 8/1=8; i=1 to 8/2=4; i=1 to 8/8=1 *\/  */
    /*     for(j=1; j <= ncodemax[k]; j++){ /\* For each modality of this covariate ncodemax=2*\/ */
- Line 7136  Please run with mle=-1 to get a correct
+ Line 8541  Please run with mle=-1 to get a correct
      printf("Problem with file %s",optionfilegnuplot);
    }
    else{
-     fprintf(ficgp,"\n# %s\n", version);
+     fprintf(ficgp,"\n# IMaCh-%s\n", version);
      fprintf(ficgp,"# %s\n", optionfilegnuplot);
      //fprintf(ficgp,"set missing 'NaNq'\n");
      fprintf(ficgp,"set datafile missing 'NaNq'\n");
- Line 7163  Please run with mle=-1 to get a correct
+ Line 8568  Please run with mle=-1 to get a correct
    else{
    fprintf(fichtmcov,"<html><head>\n<title>IMaCh Cov %s</title></head>\n <body><font size=\"2\">%s <br> %s</font> \
  <hr size=\"2\" color=\"#EC5E5E\"> \n\
- Title=%s <br>Datafile=%s Firstpass=%d Lastpass=%d Stepm=%d Weight=%d Model=%s<br>\n",\
+ Title=%s <br>Datafile=%s Firstpass=%d Lastpass=%d Stepm=%d Weight=%d Model=1+age+%s<br>\n",\
            optionfilehtmcov,version,fullversion,title,datafile,firstpass,lastpass,stepm, weightopt, model);
    }
-   fprintf(fichtm,"<html><head>\n<title>IMaCh %s</title></head>\n <body><font size=\"2\">%s <br> %s</font> \
+   fprintf(fichtm,"<html><head>\n<head>\n<meta charset=\"utf-8\"/><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n<title>IMaCh %s</title></head>\n <body><font size=\"7\"><a href=http:/euroreves.ined.fr/imach>IMaCh for Interpolated Markov Chain</a> </font><br>\n<font size=\"3\">Sponsored by Copyright (C)  2002-2015 <a href=http://www.ined.fr>INED</a>-EUROREVES-Institut de longévité-2013-2016-Japan Society for the Promotion of Sciences 日本学術振興会 (<a href=https://www.jsps.go.jp/english/e-grants/>Grant-in-Aid for Scientific Research 25293121</a>) - <a href=https://software.intel.com/en-us>Intel Software 2015-2018</a></font><br>  \
  <hr size=\"2\" color=\"#EC5E5E\"> \n\
- Title=%s <br>Datafile=%s Firstpass=%d Lastpass=%d Stepm=%d Weight=%d Model=%s<br>\n\
+ <font size=\"2\">IMaCh-%s <br> %s</font> \
+ <hr size=\"2\" color=\"#EC5E5E\"> \n\
+ Title=%s <br>Datafile=%s Firstpass=%d Lastpass=%d Stepm=%d Weight=%d Model=1+age+%s<br>\n\
  \n\
  <hr  size=\"2\" color=\"#EC5E5E\">\
   <ul><li><h4>Parameter files</h4>\n\
- Line 7195  Title=%s <br>Datafile=%s Firstpass=%d La
+ Line 8602  Title=%s <br>Datafile=%s Firstpass=%d La
    /* Calculates basic frequencies. Computes observed prevalence at single age
       and prints on file fileres'p'. */
-   freqsummary(fileres, agemin, agemax, s, agev, nlstate, imx,Tvaraff,nbcode, ncodemax,mint,anint,strstart);
+   freqsummary(fileres, agemin, agemax, s, agev, nlstate, imx,Tvaraff,nbcode, ncodemax,mint,anint,strstart,\
+               firstpass, lastpass,  stepm,  weightopt, model);
    fprintf(fichtm,"\n");
    fprintf(fichtm,"<br>Total number of observations=%d <br>\n\
- Line 7361  Interval (in months) between two waves:
+ Line 8769  Interval (in months) between two waves:
  #endif
      fclose(ficrespow);
-     hesscov(matcov, p, NDIM, delti, 1e-4, gompertz);
+     hesscov(matcov, hess, p, NDIM, delti, 1e-4, gompertz);
      for(i=1; i <=NDIM; i++)
        for(j=i+1;j<=NDIM;j++)
          matcov[i][j]=matcov[j][i];
      printf("\nCovariance matrix\n ");
+     fprintf(ficlog,"\nCovariance matrix\n ");
      for(i=1; i <=NDIM; i++) {
        for(j=1;j<=NDIM;j++){
          printf("%f ",matcov[i][j]);
+         fprintf(ficlog,"%f ",matcov[i][j]);
        }
-       printf("\n ");
+       printf("\n ");  fprintf(ficlog,"\n ");
      }
      printf("iter=%d MLE=%f Eq=%lf*exp(%lf*(age-%d))\n",iter,-gompertz(p),p[1],p[2],agegomp);
- Line 7434  Please run with mle=-1 to get a correct
+ Line 8844  Please run with mle=-1 to get a correct
      free_matrix(ximort,1,NDIM,1,NDIM);
  #endif
    } /* Endof if mle==-3 mortality only */
-   /* Standard maximisation */
+   /* Standard  */
-   else{ /* For mle >=1 */
+   else{ /* For mle !=- 3, could be 0 or 1 or 4 etc. */
-     globpr=0;/* debug */
+     globpr=0;/* Computes sum of likelihood for globpr=1 and funcone */
-     /* Computes likelihood for initial parameters */
+     /* Computes likelihood for initial parameters, uses funcone to compute gpimx and gsw */
      likelione(ficres, p, npar, nlstate, &globpr, &ipmx, &sw, &fretone, funcone); /* Prints the contributions to the likelihood */
      printf("First Likeli=%12.6f ipmx=%ld sw=%12.6f",fretone,ipmx,sw);
      for (k=1; k<=npar;k++)
        printf(" %d %8.5f",k,p[k]);
      printf("\n");
-     globpr=1; /* again, to print the contributions */
+     if(mle>=1){ /* Could be 1 or 2, Real Maximization */
+       /* mlikeli uses func not funcone */
+       mlikeli(ficres,p, npar, ncovmodel, nlstate, ftol, func);
+     }
+     if(mle==0) {/* No optimization, will print the likelihoods for the datafile */
+       globpr=0;/* Computes sum of likelihood for globpr=1 and funcone */
+       /* Computes likelihood for initial parameters, uses funcone to compute gpimx and gsw */
+       likelione(ficres, p, npar, nlstate, &globpr, &ipmx, &sw, &fretone, funcone); /* Prints the contributions to the likelihood */
+     }
+     globpr=1; /* again, to print the individual contributions using computed gpimx and gsw */
      likelione(ficres, p, npar, nlstate, &globpr, &ipmx, &sw, &fretone, funcone); /* Prints the contributions to the likelihood */
      printf("Second Likeli=%12.6f ipmx=%ld sw=%12.6f",fretone,ipmx,sw);
      for (k=1; k<=npar;k++)
        printf(" %d %8.5f",k,p[k]);
      printf("\n");
-     if(mle>=1){ /* Could be 1 or 2, Real Maximisation */
-       mlikeli(ficres,p, npar, ncovmodel, nlstate, ftol, func);
-     }
      /*--------- results files --------------*/
      fprintf(ficres,"title=%s datafile=%s lastobs=%d firstpass=%d lastpass=%d\nftol=%e stepm=%d ncovcol=%d nlstate=%d ndeath=%d maxwav=%d mle= 0 weight=%d\nmodel=1+age+%s.\n", title, datafile, lastobs, firstpass,lastpass,ftol, stepm, ncovcol, nlstate, ndeath, maxwav, weightopt,model);
- Line 7478  Please run with mle=-1 to get a correct
+ Line 8894  Please run with mle=-1 to get a correct
          }
        }
      }
-     if(mle!=0){
+     if(mle != 0){
-       /* Computing hessian and covariance matrix */
+       /* Computing hessian and covariance matrix only at a peak of the Likelihood, that is after optimization */
        ftolhess=ftol; /* Usually correct */
-       hesscov(matcov, p, npar, delti, ftolhess, func);
+       hesscov(matcov, hess, p, npar, delti, ftolhess, func);
-     }
+       printf("Parameters and 95%% confidence intervals\n W is simply the result of the division of the parameter by the square root of covariance of the parameter.\n And Wald-based confidence intervals plus and minus 1.96 * W .\n But be careful that parameters are highly correlated because incidence of disability is highly correlated to incidence of recovery.\n It might be better to visualize the covariance matrix. See the page 'Matrix of variance-covariance of one-step probabilities' and its graphs.\n");
-     printf("Parameters and 95%% confidence intervals\n W is simply the result of the division of the parameter by the square root of covariance of the parameter.\n And Wald-based confidence intervals plus and minus 1.96 * W .\n But be careful that parameters are highly correlated because incidence of disability is highly correlated to incidence of recovery.\n It might be better to visualize the covariance matrix. See the page 'Matrix of variance-covariance of one-step probabilities' and its graphs.\n");
+       fprintf(ficlog, "Parameters, Wald tests and Wald-based confidence intervals\n W is simply the result of the division of the parameter by the square root of covariance of the parameter.\n And Wald-based confidence intervals plus and minus 1.96 * W \n  It might be better to visualize the covariance matrix. See the page 'Matrix of variance-covariance of one-step probabilities' and its graphs.\n");
-     fprintf(ficlog, "Parameters, Wald tests and Wald-based confidence intervals\n W is simply the result of the division of the parameter by the square root of covariance of the parameter.\n And Wald-based confidence intervals plus and minus 1.96 * W \n  It might be better to visualize the covariance matrix. See the page 'Matrix of variance-covariance of one-step probabilities' and its graphs.\n");
+       for(i=1,jk=1; i <=nlstate; i++){
-     for(i=1,jk=1; i <=nlstate; i++){
+         for(k=1; k <=(nlstate+ndeath); k++){
-       for(k=1; k <=(nlstate+ndeath); k++){
+           if (k != i) {
-         if (k != i) {
+             printf("%d%d ",i,k);
-           printf("%d%d ",i,k);
+             fprintf(ficlog,"%d%d ",i,k);
-           fprintf(ficlog,"%d%d ",i,k);
+             for(j=1; j <=ncovmodel; j++){
-           for(j=1; j <=ncovmodel; j++){
+               printf("%12.7f W=%8.3f CI=[%12.7f ; %12.7f] ",p[jk], p[jk]/sqrt(matcov[jk][jk]), p[jk]-1.96*sqrt(matcov[jk][jk]),p[jk]+1.96*sqrt(matcov[jk][jk]));
-             printf("%12.7f W=%8.3f CI=[%12.7f ; %12.7f] ",p[jk], p[jk]/sqrt(matcov[jk][jk]), p[jk]-1.96*sqrt(matcov[jk][jk]),p[jk]+1.96*sqrt(matcov[jk][jk]));
+               fprintf(ficlog,"%12.7f W=%8.3f CI=[%12.7f ; %12.7f] ",p[jk], p[jk]/sqrt(matcov[jk][jk]), p[jk]-1.96*sqrt(matcov[jk][jk]),p[jk]+1.96*sqrt(matcov[jk][jk]));
-             fprintf(ficlog,"%12.7f W=%8.3f CI=[%12.7f ; %12.7f] ",p[jk], p[jk]/sqrt(matcov[jk][jk]), p[jk]-1.96*sqrt(matcov[jk][jk]),p[jk]+1.96*sqrt(matcov[jk][jk]));
+               jk++;
-             jk++;
+             }
+             printf("\n");
+             fprintf(ficlog,"\n");
            }
-           printf("\n");
-           fprintf(ficlog,"\n");
          }
        }
-     }
+     } /* end of hesscov and Wald tests */
+     /*  */
      fprintf(ficres,"# Scales (for hessian or gradient estimation)\n");
      printf("# Scales (for hessian or gradient estimation)\n");
      fprintf(ficlog,"# Scales (for hessian or gradient estimation)\n");
- Line 7524  Please run with mle=-1 to get a correct
+ Line 8941  Please run with mle=-1 to get a correct
      }
      fprintf(ficres,"# Covariance matrix \n# 121 Var(a12)\n# 122 Cov(b12,a12) Var(b12)\n#   ...\n# 232 Cov(b23,a12)  Cov(b23,b12) ... Var (b23)\n");
-     if(mle>=1)
+     if(mle >= 1) /* To big for the screen */
        printf("# Covariance matrix \n# 121 Var(a12)\n# 122 Cov(b12,a12) Var(b12)\n#   ...\n# 232 Cov(b23,a12)  Cov(b23,b12) ... Var (b23)\n");
      fprintf(ficlog,"# Covariance matrix \n# 121 Var(a12)\n# 122 Cov(b12,a12) Var(b12)\n#   ...\n# 232 Cov(b23,a12)  Cov(b23,b12) ... Var (b23)\n");
      /* # 121 Var(a12)\n\ */
- Line 7587  Please run with mle=-1 to get a correct
+ Line 9004  Please run with mle=-1 to get a correct
                          fprintf(ficres," Var(%s%1d%1d)",ca,i,j);
                        }else{
                          if(mle>=1)
-                           printf(" %.5e",matcov[jj][ll]);
+                           printf(" %.7e",matcov[jj][ll]);
-                         fprintf(ficlog," %.5e",matcov[jj][ll]);
+                         fprintf(ficlog," %.7e",matcov[jj][ll]);
-                         fprintf(ficres," %.5e",matcov[jj][ll]);
+                         fprintf(ficres," %.7e",matcov[jj][ll]);
                        }
                      }
                    }
- Line 7608  Please run with mle=-1 to get a correct
+ Line 9025  Please run with mle=-1 to get a correct
      fflush(ficlog);
      fflush(ficres);
+       while(fgets(line, MAXLINE, ficpar)) {
-     while((c=getc(ficpar))=='#' && c!= EOF){
+     /* If line starts with a # it is a comment */
-       ungetc(c,ficpar);
+     if (line[0] == '#') {
-       fgets(line, MAXLINE, ficpar);
+       numlinepar++;
        fputs(line,stdout);
        fputs(line,ficparo);
-     }
+       fputs(line,ficlog);
-     ungetc(c,ficpar);
+       continue;
+     }else
+       break;
+   }
+     /* while((c=getc(ficpar))=='#' && c!= EOF){ */
+     /*   ungetc(c,ficpar); */
+     /*   fgets(line, MAXLINE, ficpar); */
+     /*   fputs(line,stdout); */
+     /*   fputs(line,ficparo); */
+     /* } */
+     /* ungetc(c,ficpar); */
      estepm=0;
-     fscanf(ficpar,"agemin=%lf agemax=%lf bage=%lf fage=%lf estepm=%d\n",&ageminpar,&agemaxpar, &bage, &fage, &estepm);
+     if((num_filled=sscanf(line,"agemin=%lf agemax=%lf bage=%lf fage=%lf estepm=%d ftolpl=%lf\n",&ageminpar,&agemaxpar, &bage, &fage, &estepm, &ftolpl)) !=EOF){
+     if (num_filled != 6) {
+       printf("Not 6 parameters in line, for example:agemin=60 agemax=95 bage=55 fage=95 estepm=24 ftolpl=6e-4\n");
+       printf("but line=%s\n",line);
+       goto end;
+     }
+     printf("agemin=%lf agemax=%lf bage=%lf fage=%lf estepm=%d ftolpl=%lf\n",ageminpar,agemaxpar, bage, fage, estepm, ftolpl);
+   }
+   /* ftolpl=6*ftol*1.e5; /\* 6.e-3 make convergences in less than 80 loops for the prevalence limit *\/ */
+   /*ftolpl=6.e-4;*/ /* 6.e-3 make convergences in less than 80 loops for the prevalence limit */
+     /* fscanf(ficpar,"agemin=%lf agemax=%lf bage=%lf fage=%lf estepm=%d ftolpl=%\n",&ageminpar,&agemaxpar, &bage, &fage, &estepm); */
      if (estepm==0 || estepm < stepm) estepm=stepm;
      if (fage <= 2) {
        bage = ageminpar;
- Line 7626  Please run with mle=-1 to get a correct
+ Line 9066  Please run with mle=-1 to get a correct
      }
      fprintf(ficres,"# agemin agemax for life expectancy, bage fage (if mle==0 ie no data nor Max likelihood).\n");
-     fprintf(ficres,"agemin=%.0f agemax=%.0f bage=%.0f fage=%.0f estepm=%d\n",ageminpar,agemaxpar,bage,fage, estepm);
+     fprintf(ficres,"agemin=%.0f agemax=%.0f bage=%.0f fage=%.0f estepm=%d ftolpl=%e\n",ageminpar,agemaxpar,bage,fage, estepm, ftolpl);
-     fprintf(ficparo,"agemin=%.0f agemax=%.0f bage=%.0f fage=%.0f estepm=%d\n",ageminpar,agemaxpar,bage,fage, estepm);
+     fprintf(ficparo,"agemin=%.0f agemax=%.0f bage=%.0f fage=%.0f estepm=%d, ftolpl=%e\n",ageminpar,agemaxpar,bage,fage, estepm, ftolpl);
      /* Other stuffs, more or less useful */
      while((c=getc(ficpar))=='#' && c!= EOF){
- Line 7676  Please run with mle=-1 to get a correct
+ Line 9116  Please run with mle=-1 to get a correct
      fprintf(ficres,"prevforecast=%d starting-proj-date=%.lf/%.lf/%.lf final-proj-date=%.lf/%.lf/%.lf mobil_average=%d\n",prevfcast,jproj1,mproj1,anproj1,jproj2,mproj2,anproj2,mobilavproj);
      /* day and month of proj2 are not used but only year anproj2.*/
+     while((c=getc(ficpar))=='#' && c!= EOF){
+       ungetc(c,ficpar);
+       fgets(line, MAXLINE, ficpar);
+       fputs(line,stdout);
+       fputs(line,ficparo);
+     }
+     ungetc(c,ficpar);
+     fscanf(ficpar,"backcast=%d starting-back-date=%lf/%lf/%lf final-back-date=%lf/%lf/%lf mobil_average=%d\n",&backcast,&jback1,&mback1,&anback1,&jback2,&mback2,&anback2,&mobilavproj);
+     fscanf(ficparo,"backcast=%d starting-back-date=%lf/%lf/%lf final-back-date=%lf/%lf/%lf mobil_average=%d\n",&backcast,&jback1,&mback1,&anback1,&jback2,&mback2,&anback2,&mobilavproj);
+     fscanf(ficlog,"backcast=%d starting-back-date=%lf/%lf/%lf final-back-date=%lf/%lf/%lf mobil_average=%d\n",&backcast,&jback1,&mback1,&anback1,&jback2,&mback2,&anback2,&mobilavproj);
+     fscanf(ficres,"backcast=%d starting-back-date=%lf/%lf/%lf final-back-date=%lf/%lf/%lf mobil_average=%d\n",&backcast,&jback1,&mback1,&anback1,&jback2,&mback2,&anback2,&mobilavproj);
+     /* day and month of proj2 are not used but only year anproj2.*/
       /* freqsummary(fileres, agemin, agemax, s, agev, nlstate, imx,Tvaraff,nbcode, ncodemax,mint,anint); */
- Line 7690  Please run with mle=-1 to get a correct
+ Line 9143  Please run with mle=-1 to get a correct
  This is probably because your parameter file doesn't \n  contain the exact number of lines (or columns) corresponding to your model line.\n\
  Please run with mle=-1 to get a correct covariance matrix.\n",ageminpar,agemaxpar);
      }else
-       printinggnuplot(fileresu, optionfilefiname,ageminpar,agemaxpar,fage, pathc,p);
+       printinggnuplot(fileresu, optionfilefiname,ageminpar,agemaxpar,fage, prevfcast, pathc,p);
      printinghtml(fileresu,title,datafile, firstpass, lastpass, stepm, weightopt,\
-                  model,imx,jmin,jmax,jmean,rfileres,popforecast,estepm,\
+                  model,imx,jmin,jmax,jmean,rfileres,popforecast,prevfcast,backcast, estepm, \
-                  jprev1,mprev1,anprev1,jprev2,mprev2,anprev2);
+                  jprev1,mprev1,anprev1,dateprev1,jprev2,mprev2,anprev2,dateprev2);
     /*------------ free_vector  -------------*/
     /*  chdir(path); */
-     free_ivector(wav,1,imx);
+     /* free_ivector(wav,1,imx); */  /* Moved after last prevalence call */
-     free_imatrix(dh,1,lastpass-firstpass+1,1,imx);
+     /* free_imatrix(dh,1,lastpass-firstpass+2,1,imx); */
-     free_imatrix(bh,1,lastpass-firstpass+1,1,imx);
+     /* free_imatrix(bh,1,lastpass-firstpass+2,1,imx); */
-     free_imatrix(mw,1,lastpass-firstpass+1,1,imx);
+     /* free_imatrix(mw,1,lastpass-firstpass+2,1,imx);    */
      free_lvector(num,1,n);
      free_vector(agedc,1,n);
      /*free_matrix(covar,0,NCOVMAX,1,n);*/
- Line 7717  Please run with mle=-1 to get a correct
+ Line 9170  Please run with mle=-1 to get a correct
      /*--------------- Prevalence limit  (period or stable prevalence) --------------*/
      /*#include "prevlim.h"*/  /* Use ficrespl, ficlog */
      prlim=matrix(1,nlstate,1,nlstate);
-     prevalence_limit(p, prlim,  ageminpar, agemaxpar);
+     prevalence_limit(p, prlim,  ageminpar, agemaxpar, ftolpl, &ncvyear);
      fclose(ficrespl);
+     /*--------------- Back Prevalence limit  (period or stable prevalence) --------------*/
+     /*#include "prevlim.h"*/  /* Use ficresplb, ficlog */
+     bprlim=matrix(1,nlstate,1,nlstate);
+     back_prevalence_limit(p, bprlim,  ageminpar, agemaxpar, ftolpl, &ncvyear);
+     fclose(ficresplb);
  #ifdef FREEEXIT2
  #include "freeexit2.h"
  #endif
- Line 7729  Please run with mle=-1 to get a correct
+ Line 9189  Please run with mle=-1 to get a correct
      hPijx(p, bage, fage);
      fclose(ficrespij);
+     hBijx(p, bage, fage);
+     fclose(ficrespijb);
    /*-------------- Variance of one-step probabilities---*/
      k=1;
      varprob(optionfilefiname, matcov, p, delti, nlstate, bage, fage,k,Tvar,nbcode, ncodemax,strstart);
- Line 7745  Please run with mle=-1 to get a correct
+ Line 9208  Please run with mle=-1 to get a correct
      if(prevfcast==1){
        /*    if(stepm ==1){*/
        prevforecast(fileresu, anproj1, mproj1, jproj1, agemin, agemax, dateprev1, dateprev2, mobilavproj, bage, fage, firstpass, lastpass, anproj2, p, cptcoveff);
-       /* (popforecast==1) populforecast(fileres, anpyram,mpyram,jpyram, agemin,agemax, dateprev1, dateprev2,mobilav, agedeb, fage, popforecast, popfile, anpyram1,p, i1);*/
-       /*      }  */
-       /*      else{ */
-       /*        erreur=108; */
-       /*        printf("Warning %d!! You can only forecast the prevalences if the optimization\n  has been performed with stepm = 1 (month) instead of %d or model=. instead of '%s'\n", erreur, stepm, model); */
-       /*        fprintf(ficlog,"Warning %d!! You can only forecast the prevalences if the optimization\n  has been performed with stepm = 1 (month) instead of %d or model=. instead of '%s'\n", erreur, stepm, model); */
-       /*      } */
      }
+     if(backcast==1){
+       prevbackforecast(fileresu, anback1, mback1, jback1, agemin, agemax, dateprev1, dateprev2, mobilavproj, bage, fage, firstpass, lastpass, anback2, p, cptcoveff);
+     }
+     /* (popforecast==1) populforecast(fileres, anpyram,mpyram,jpyram, agemin,agemax, dateprev1, dateprev2,mobilav, agedeb, fage, popforecast, popfile, anpyram1,p, i1);*/
+     /*      }  */
+     /*      else{ */
+     /*        erreur=108; */
+     /*        printf("Warning %d!! You can only forecast the prevalences if the optimization\n  has been performed with stepm = 1 (month) instead of %d or model=. instead of '%s'\n", erreur, stepm, model); */
+     /*        fprintf(ficlog,"Warning %d!! You can only forecast the prevalences if the optimization\n  has been performed with stepm = 1 (month) instead of %d or model=. instead of '%s'\n", erreur, stepm, model); */
+     /*      } */
      /* ------ Other prevalence ratios------------ */
- Line 7762  Please run with mle=-1 to get a correct
+ Line 9229  Please run with mle=-1 to get a correct
      /*  printf("ageminpar=%f, agemax=%f, s[lastpass][imx]=%d, agev[lastpass][imx]=%f, nlstate=%d, imx=%d,  mint[lastpass][imx]=%f, anint[lastpass][imx]=%f,dateprev1=%f, dateprev2=%f, firstpass=%d, lastpass=%d\n",\
          ageminpar, agemax, s[lastpass][imx], agev[lastpass][imx], nlstate, imx, mint[lastpass][imx],anint[lastpass][imx], dateprev1, dateprev2, firstpass, lastpass);
      */
+     free_ivector(wav,1,imx);
+     free_imatrix(dh,1,lastpass-firstpass+2,1,imx);
+     free_imatrix(bh,1,lastpass-firstpass+2,1,imx);
+     free_imatrix(mw,1,lastpass-firstpass+2,1,imx);
      if (mobilav!=0) {
        mobaverage= ma3x(1, AGESUP,1,NCOVMAX, 1,NCOVMAX);
- Line 7780  Please run with mle=-1 to get a correct
+ Line 9252  Please run with mle=-1 to get a correct
        printf("Problem with Health Exp. resultfile: %s\n", filerese); exit(0);
        fprintf(ficlog,"Problem with Health Exp. resultfile: %s\n", filerese); exit(0);
      }
-     printf("Computing Health Expectancies: result on file '%s' \n", filerese);
+     printf("Computing Health Expectancies: result on file '%s' ...", filerese);fflush(stdout);
-     fprintf(ficlog,"Computing Health Expectancies: result on file '%s' \n", filerese);
+     fprintf(ficlog,"Computing Health Expectancies: result on file '%s' ...", filerese);fflush(ficlog);
      /*for(cptcov=1,k=0;cptcov<=i1;cptcov++){
        for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){*/
- Line 7800  Please run with mle=-1 to get a correct
+ Line 9272  Please run with mle=-1 to get a correct
        /*}*/
      }
      fclose(ficreseij);
+     printf("done evsij\n");fflush(stdout);
+     fprintf(ficlog,"done evsij\n");fflush(ficlog);
      /*---------- Health expectancies and variances ------------*/
- Line 7811  Please run with mle=-1 to get a correct
+ Line 9284  Please run with mle=-1 to get a correct
        printf("Problem with total LE resultfile: %s\n", filerest);goto end;
        fprintf(ficlog,"Problem with total LE resultfile: %s\n", filerest);goto end;
      }
-     printf("Computing Total Life expectancies with their standard errors: file '%s' \n", filerest);
+     printf("Computing Total Life expectancies with their standard errors: file '%s' ...\n", filerest); fflush(stdout);
-     fprintf(ficlog,"Computing Total Life expectancies with their standard errors: file '%s' \n", filerest);
+     fprintf(ficlog,"Computing Total Life expectancies with their standard errors: file '%s' ...\n", filerest); fflush(ficlog);
      strcpy(fileresstde,"STDE_");
- Line 7821  Please run with mle=-1 to get a correct
+ Line 9294  Please run with mle=-1 to get a correct
        printf("Problem with Health Exp. and std errors resultfile: %s\n", fileresstde); exit(0);
        fprintf(ficlog,"Problem with Health Exp. and std errors resultfile: %s\n", fileresstde); exit(0);
      }
-     printf("Computing Health Expectancies and standard errors: result on file '%s' \n", fileresstde);
+     printf("  Computing Health Expectancies and standard errors: result on file '%s' \n", fileresstde);
-     fprintf(ficlog,"Computing Health Expectancies and standard errors: result on file '%s' \n", fileresstde);
+     fprintf(ficlog,"  Computing Health Expectancies and standard errors: result on file '%s' \n", fileresstde);
      strcpy(filerescve,"CVE_");
      strcat(filerescve,fileresu);
- Line 7830  Please run with mle=-1 to get a correct
+ Line 9303  Please run with mle=-1 to get a correct
        printf("Problem with Covar. Health Exp. resultfile: %s\n", filerescve); exit(0);
        fprintf(ficlog,"Problem with Covar. Health Exp. resultfile: %s\n", filerescve); exit(0);
      }
-     printf("Computing Covar. of Health Expectancies: result on file '%s' \n", filerescve);
+     printf("    Computing Covar. of Health Expectancies: result on file '%s' \n", filerescve);
-     fprintf(ficlog,"Computing Covar. of Health Expectancies: result on file '%s' \n", filerescve);
+     fprintf(ficlog,"    Computing Covar. of Health Expectancies: result on file '%s' \n", filerescve);
      strcpy(fileresv,"V_");
      strcat(fileresv,fileresu);
- Line 7839  Please run with mle=-1 to get a correct
+ Line 9312  Please run with mle=-1 to get a correct
        printf("Problem with variance resultfile: %s\n", fileresv);exit(0);
        fprintf(ficlog,"Problem with variance resultfile: %s\n", fileresv);exit(0);
      }
-     printf("Computing Variance-covariance of DFLEs: file '%s' \n", fileresv);
+     printf("      Computing Variance-covariance of DFLEs: file '%s' ... ", fileresv);fflush(stdout);
-     fprintf(ficlog,"Computing Variance-covariance of DFLEs: file '%s' \n", fileresv);
+     fprintf(ficlog,"      Computing Variance-covariance of DFLEs: file '%s' ... ", fileresv);fflush(ficlog);
      /*for(cptcov=1,k=0;cptcov<=i1;cptcov++){
        for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){*/
      for (k=1; k <= (int) pow(2,cptcoveff); k++){
-         fprintf(ficrest,"\n#****** ");
+       fprintf(ficrest,"\n#****** ");
-         for(j=1;j<=cptcoveff;j++)
+       for(j=1;j<=cptcoveff;j++)
-           fprintf(ficrest,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         fprintf(ficrest,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-         fprintf(ficrest,"******\n");
+       fprintf(ficrest,"******\n");
-         fprintf(ficresstdeij,"\n#****** ");
+       fprintf(ficresstdeij,"\n#****** ");
-         fprintf(ficrescveij,"\n#****** ");
+       fprintf(ficrescveij,"\n#****** ");
-         for(j=1;j<=cptcoveff;j++) {
+       for(j=1;j<=cptcoveff;j++) {
-           fprintf(ficresstdeij,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         fprintf(ficresstdeij,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-           fprintf(ficrescveij,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         fprintf(ficrescveij,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-         }
+       }
-         fprintf(ficresstdeij,"******\n");
+       fprintf(ficresstdeij,"******\n");
-         fprintf(ficrescveij,"******\n");
+       fprintf(ficrescveij,"******\n");
-         fprintf(ficresvij,"\n#****** ");
+       fprintf(ficresvij,"\n#****** ");
-         for(j=1;j<=cptcoveff;j++)
+       for(j=1;j<=cptcoveff;j++)
-           fprintf(ficresvij,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         fprintf(ficresvij,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-         fprintf(ficresvij,"******\n");
+       fprintf(ficresvij,"******\n");
-         eij=ma3x(1,nlstate,1,nlstate,(int) bage, (int) fage);
+       eij=ma3x(1,nlstate,1,nlstate,(int) bage, (int) fage);
-         oldm=oldms;savm=savms;
+       oldm=oldms;savm=savms;
-         cvevsij(eij, p, nlstate, stepm, (int) bage, (int)fage, oldm, savm, k, estepm, delti, matcov, strstart);
+       printf(" cvevsij %d, ",k);
-         /*
+       fprintf(ficlog, " cvevsij %d, ",k);
-          */
+       cvevsij(eij, p, nlstate, stepm, (int) bage, (int)fage, oldm, savm, k, estepm, delti, matcov, strstart);
-         /* goto endfree; */
+       printf(" end cvevsij \n ");
+       fprintf(ficlog, " end cvevsij \n ");
-         vareij=ma3x(1,nlstate,1,nlstate,(int) bage, (int) fage);
-         pstamp(ficrest);
+       /*
+        */
+       /* goto endfree; */
-         for(vpopbased=0; vpopbased <= popbased; vpopbased++){ /* Done for vpopbased=0 and vpopbased=1 if popbased==1*/
-           oldm=oldms;savm=savms; /* ZZ Segmentation fault */
+       vareij=ma3x(1,nlstate,1,nlstate,(int) bage, (int) fage);
-           cptcod= 0; /* To be deleted */
+       pstamp(ficrest);
-           varevsij(optionfilefiname, vareij, matcov, p, delti, nlstate, stepm, (int) bage, (int) fage, oldm, savm, prlim, ftolpl,k, estepm, cptcov,cptcod,vpopbased,mobilav, strstart); /* cptcod not initialized Intel */
-           fprintf(ficrest,"# Total life expectancy with std error and decomposition into time to be expected in each health state\n#  (weighted average of eij where weights are ");
-           if(vpopbased==1)
+       for(vpopbased=0; vpopbased <= popbased; vpopbased++){ /* Done for vpopbased=0 and vpopbased=1 if popbased==1*/
-             fprintf(ficrest,"the age specific prevalence observed (cross-sectionally) in the population i.e cross-sectionally\n in each health state (popbased=1) (mobilav=%d)\n",mobilav);
+         oldm=oldms;savm=savms; /* ZZ Segmentation fault */
-           else
+         cptcod= 0; /* To be deleted */
-             fprintf(ficrest,"the age specific period (stable) prevalences in each health state \n");
+         printf("varevsij %d \n",vpopbased);
-           fprintf(ficrest,"# Age popbased mobilav e.. (std) ");
+         fprintf(ficlog, "varevsij %d \n",vpopbased);
-           for (i=1;i<=nlstate;i++) fprintf(ficrest,"e.%d (std) ",i);
+         varevsij(optionfilefiname, vareij, matcov, p, delti, nlstate, stepm, (int) bage, (int) fage, oldm, savm, prlim, ftolpl, &ncvyear, k, estepm, cptcov,cptcod,vpopbased,mobilav, strstart); /* cptcod not initialized Intel */
-           fprintf(ficrest,"\n");
+         fprintf(ficrest,"# Total life expectancy with std error and decomposition into time to be expected in each health state\n#  (weighted average of eij where weights are ");
-           /* printf("Which p?\n"); for(i=1;i<=npar;i++)printf("p[i=%d]=%lf,",i,p[i]);printf("\n"); */
+         if(vpopbased==1)
-           epj=vector(1,nlstate+1);
+           fprintf(ficrest,"the age specific prevalence observed (cross-sectionally) in the population i.e cross-sectionally\n in each health state (popbased=1) (mobilav=%d)\n",mobilav);
-           for(age=bage; age <=fage ;age++){
+         else
-             prevalim(prlim, nlstate, p, age, oldm, savm,ftolpl,k); /*ZZ Is it the correct prevalim */
+           fprintf(ficrest,"the age specific period (stable) prevalences in each health state \n");
-             if (vpopbased==1) {
+         fprintf(ficrest,"# Age popbased mobilav e.. (std) ");
-               if(mobilav ==0){
+         for (i=1;i<=nlstate;i++) fprintf(ficrest,"e.%d (std) ",i);
-                 for(i=1; i<=nlstate;i++)
+         fprintf(ficrest,"\n");
-                   prlim[i][i]=probs[(int)age][i][k];
+         /* printf("Which p?\n"); for(i=1;i<=npar;i++)printf("p[i=%d]=%lf,",i,p[i]);printf("\n"); */
-               }else{ /* mobilav */
+         epj=vector(1,nlstate+1);
-                 for(i=1; i<=nlstate;i++)
+         printf("Computing age specific period (stable) prevalences in each health state \n");
-                   prlim[i][i]=mobaverage[(int)age][i][k];
+         fprintf(ficlog,"Computing age specific period (stable) prevalences in each health state \n");
-               }
+         for(age=bage; age <=fage ;age++){
-             }
+           prevalim(prlim, nlstate, p, age, oldm, savm, ftolpl, &ncvyear, k); /*ZZ Is it the correct prevalim */
+           if (vpopbased==1) {
-             fprintf(ficrest," %4.0f %d %d",age, vpopbased, mobilav);
+             if(mobilav ==0){
-             /* printf(" age %4.0f ",age); */
+               for(i=1; i<=nlstate;i++)
-             for(j=1, epj[nlstate+1]=0.;j <=nlstate;j++){
+                 prlim[i][i]=probs[(int)age][i][k];
-               for(i=1, epj[j]=0.;i <=nlstate;i++) {
+             }else{ /* mobilav */
-                 epj[j] += prlim[i][i]*eij[i][j][(int)age];
+               for(i=1; i<=nlstate;i++)
-                 /*ZZZ  printf("%lf %lf ", prlim[i][i] ,eij[i][j][(int)age]);*/
+                 prlim[i][i]=mobaverage[(int)age][i][k];
-                 /* printf("%lf %lf ", prlim[i][i] ,eij[i][j][(int)age]); */
-               }
-               epj[nlstate+1] +=epj[j];
              }
-             /* printf(" age %4.0f \n",age); */
+           }
-             for(i=1, vepp=0.;i <=nlstate;i++)
+           fprintf(ficrest," %4.0f %d %d",age, vpopbased, mobilav);
-               for(j=1;j <=nlstate;j++)
+           /* fprintf(ficrest," %4.0f %d %d %d %d",age, vpopbased, mobilav,Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]); */ /* to be done */
-                 vepp += vareij[i][j][(int)age];
+           /* printf(" age %4.0f ",age); */
-             fprintf(ficrest," %7.3f (%7.3f)", epj[nlstate+1],sqrt(vepp));
+           for(j=1, epj[nlstate+1]=0.;j <=nlstate;j++){
-             for(j=1;j <=nlstate;j++){
+             for(i=1, epj[j]=0.;i <=nlstate;i++) {
-               fprintf(ficrest," %7.3f (%7.3f)", epj[j],sqrt(vareij[j][j][(int)age]));
+               epj[j] += prlim[i][i]*eij[i][j][(int)age];
+               /*ZZZ  printf("%lf %lf ", prlim[i][i] ,eij[i][j][(int)age]);*/
+               /* printf("%lf %lf ", prlim[i][i] ,eij[i][j][(int)age]); */
              }
-             fprintf(ficrest,"\n");
+             epj[nlstate+1] +=epj[j];
+           }
+           /* printf(" age %4.0f \n",age); */
+           for(i=1, vepp=0.;i <=nlstate;i++)
+             for(j=1;j <=nlstate;j++)
+               vepp += vareij[i][j][(int)age];
+           fprintf(ficrest," %7.3f (%7.3f)", epj[nlstate+1],sqrt(vepp));
+           for(j=1;j <=nlstate;j++){
+             fprintf(ficrest," %7.3f (%7.3f)", epj[j],sqrt(vareij[j][j][(int)age]));
            }
+           fprintf(ficrest,"\n");
          }
-         free_ma3x(eij,1,nlstate,1,nlstate,(int) bage, (int)fage);
+       } /* End vpopbased */
-         free_ma3x(vareij,1,nlstate,1,nlstate,(int) bage, (int)fage);
+       free_ma3x(eij,1,nlstate,1,nlstate,(int) bage, (int)fage);
-         free_vector(epj,1,nlstate+1);
+       free_ma3x(vareij,1,nlstate,1,nlstate,(int) bage, (int)fage);
+       free_vector(epj,1,nlstate+1);
+       printf("done \n");fflush(stdout);
+       fprintf(ficlog,"done\n");fflush(ficlog);
        /*}*/
-     }
+     } /* End k */
      free_vector(weight,1,n);
      free_imatrix(Tvard,1,NCOVMAX,1,2);
      free_imatrix(s,1,maxwav+1,1,n);
- Line 7940  Please run with mle=-1 to get a correct
+ Line 9426  Please run with mle=-1 to get a correct
      fclose(ficrescveij);
      fclose(ficresvij);
      fclose(ficrest);
+     printf("done Health expectancies\n");fflush(stdout);
+     fprintf(ficlog,"done Health expectancies\n");fflush(ficlog);
      fclose(ficpar);
      /*------- Variance of period (stable) prevalence------*/
- Line 7950  Please run with mle=-1 to get a correct
+ Line 9438  Please run with mle=-1 to get a correct
        printf("Problem with variance of period (stable) prevalence  resultfile: %s\n", fileresvpl);
        exit(0);
      }
-     printf("Computing Variance-covariance of period (stable) prevalence: file '%s' \n", fileresvpl);
+     printf("Computing Variance-covariance of period (stable) prevalence: file '%s' ...", fileresvpl);fflush(stdout);
+     fprintf(ficlog, "Computing Variance-covariance of period (stable) prevalence: file '%s' ...", fileresvpl);fflush(ficlog);
      /*for(cptcov=1,k=0;cptcov<=i1;cptcov++){
        for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){*/
- Line 7963  Please run with mle=-1 to get a correct
+ Line 9452  Please run with mle=-1 to get a correct
          varpl=matrix(1,nlstate,(int) bage, (int) fage);
          oldm=oldms;savm=savms;
-         varprevlim(fileres, varpl, matcov, p, delti, nlstate, stepm, (int) bage, (int) fage, oldm, savm, prlim, ftolpl,k,strstart);
+         varprevlim(fileres, varpl, matcov, p, delti, nlstate, stepm, (int) bage, (int) fage, oldm, savm, prlim, ftolpl, &ncvyear, k, strstart);
          free_matrix(varpl,1,nlstate,(int) bage, (int)fage);
        /*}*/
      }
      fclose(ficresvpl);
+     printf("done variance-covariance of period prevalence\n");fflush(stdout);
+     fprintf(ficlog,"done variance-covariance of period prevalence\n");fflush(ficlog);
      /*---------- End : free ----------------*/
      if (mobilav!=0) free_ma3x(mobaverage,1, AGESUP,1,NCOVMAX, 1,NCOVMAX);
- Line 7982  Please run with mle=-1 to get a correct
+ Line 9473  Please run with mle=-1 to get a correct
      free_matrix(savms, 1,nlstate+ndeath,1,nlstate+ndeath);
      free_matrix(covar,0,NCOVMAX,1,n);
      free_matrix(matcov,1,npar,1,npar);
+     free_matrix(hess,1,npar,1,npar);
      /*free_vector(delti,1,npar);*/
      free_ma3x(delti3,1,nlstate,1, nlstate+ndeath-1,1,ncovmodel);
      free_matrix(agev,1,maxwav,1,imx);
- Line 8001  Please run with mle=-1 to get a correct
+ Line 9493  Please run with mle=-1 to get a correct
    if((nberr >0) || (nbwarn>0)){
-     printf("End of Imach with %d errors and/or %d warnings\n",nberr,nbwarn);
+     printf("End of Imach with %d errors and/or %d warnings. Please look at the log file for details.\n",nberr,nbwarn);
-     fprintf(ficlog,"End of Imach with %d errors and/or warnings %d\n",nberr,nbwarn);
+     fprintf(ficlog,"End of Imach with %d errors and/or warnings %d. Please look at the log file for details.\n",nberr,nbwarn);
    }else{
      printf("End of Imach\n");
      fprintf(ficlog,"End of Imach\n");

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