cafefitfun

           main fitting function

           cafe

           cafefitfun, parameter, env=env

           x         - (dummy) independent array which must have the
                       same size as the resultant y axis.
           parameter - (variable) list of parameter according MPFIT
                       procedure. If not given startup parameters are
                       used.
           env       - Environment structure containing all relevant
                       static properties of cafe. Does also contain
                       pointer to x/y data sets and the fit model so
                       this function is able to construct a y
                       output.

           Returns function values (y) less the model weighted with
            error.

           Stores parameters in parameter list for all groups in (*env).

           $Id: cafefitfun.pro,v 1.11 2005/01/04 10:56:05 goehler Exp $
 $Log: cafefitfun.pro,v $
 Revision 1.11  2005/01/04 10:56:05  goehler
 fix: make shure all (internal) routines are properly documented
 Revision 1.10  2004/02/10 17:08:35  goehler
 fix: apply nodata keyword here also
 Revision 1.9  2003/04/29 07:58:19  goehler
 change/fix: ignore groups with undefined data points or non-existing models
             The determination of valid parameters is performed in new
             function cafegetvalidparam()
 Revision 1.8  2003/03/03 11:18:33  goehler
 major change: environment struct has become a pointer -> support of wplot/command line
 in common.
 Branch to be able to maintain the former line also.
 Revision 1.7  2002/09/10 13:06:47  goehler
 removed ";-" to make auxilliary routines invisible
 Revision 1.6  2002/09/09 17:36:19  goehler
 public version: updated help matching aitlib html structure.
 common version: 3.0

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