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1.1     ! brouard     1: Interpolated Marlov Chain (IMaCh program)
        !             2: 
        !             3: This program is GPL licensed for the part the code that we wrote at
        !             4: INED. But currently (version 0.97b may 2004) maximization routines use
        !             5: a modified version of the patented routines from "Numerical Recipes in
        !             6: C". If you have the right to use the sources of their software you can
        !             7: get access to the source code and to the CVS tree of IMaCh.
        !             8: 
        !             9: The program estimates Health Expectancies from Cross-longitudinal
        !            10: studies.
        !            11: The main publication is Lievre, A. Brouard. N, Heathcote
        !            12: Ch. Estimating Health Expectancies from Corss-longitudinal surveys,
        !            13: Mathematical Population Studies, 10(1), 2003, pp. 1-52.
        !            14: 
        !            15: To be brief, for each people interviewed we have the age and health
        !            16: states at each interview. Also the month of death is known. We model
        !            17: the probability to be observed in any state at any age via a
        !            18: parametric model and estimate the parameters and their confidence interval
        !            19: by maximum likelihood, many tables and graphs are output in
        !            20: HTML. Graphs are built using gnuplot.
        !            21: 
        !            22: In the Windows version, gnuplot is also distributed. Version 4 is out
        !            23: since early 2004 and is used by latest version of Imach (at least
        !            24: version 0.38i is required).
        !            25: IMaCh is supposed to work on Linux, MacIntosh and Windows (9X or
        !            26: NT/XP).
        !            27: 
        !            28: WINDOWS
        !            29: On Windows it is distributed via a setup file (no more a zip file). As
        !            30: usual you can put the 'imach' directory in Program Files or
        !            31: wherever. The directory contains at least 2 directories, 'bin' for the
        !            32: binaries which are imach.exe and gnuplot.exe, doc for some of the
        !            33: documentation, and 'mytry' in order to test the program on a parameter
        !            34: file name 'mypar.imach'.
        !            35: 
        !            36: You still can click on the imach.exe icon (which opens a DOS window)
        !            37: and drag your parameter file into the DOS windows and enter
        !            38: return. But with the newly installable version (>0.97) you can use the right
        !            39: click (once your mouse cursor is on an foo.imach file) to either edit the
        !            40: parameter file (with wordpad) or execute this parameter file via
        !            41: imach.
        !            42: If the program runs well you get a main foo.htm file which can be viewed
        !            43: with your browser and which includes all the results.
        !            44: 
        !            45: As the program output a file named foo.gp which is executed by gnuplot
        !            46: in order to draw all the graphs, you can edit it and customize it at
        !            47: your will.
        !            48: 
        !            49: By default the file gnuplot.exe is located on the same directory as
        !            50: imach and is used by imach with its absolute path. Thus if you have
        !            51: another gnuplot program which is in your path it will not be used by
        !            52: imach (we tried to simplify the installation process).
        !            53: 
        !            54: If you download a newer version of IMaCh you are supposed to Uninstall the
        !            55: former version with the standard Install/Uninstall process of Windows.
        !            56: 
        !            57: The Windows version is compiled via cygwin (gcc -mno-cygwin -o imach
        !            58: imach.c). It can be used on a command line with the command "imach
        !            59: foo.imach". But then imach.exe must be in your path. 
        !            60: The program can be used (with more comfort?) on Linux or on a
        !            61: MacIntosh.
        !            62: 
        !            63: Enjoy (?) using IMaCh.
        !            64: 
        !            65: You may subscribe to imach-users@listes.ined.fr by sending a mail at
        !            66: imach-users-subscribe@listes.ined.fr and you can unsubscribe with a
        !            67: mail to imach-users-unsubscribe@listes.ined.fr .
        !            68: 
        !            69: Nicolas Brouard (brouard at ined point fr)
        !            70: Agnès Lièvre (lievre chez ined dot fr)
        !            71: Christopher Heathcote
        !            72: 
        !            73:  
        !            74: