Hello,

I have written some functionality to set up the
'gsl_multifit_fdfsolver' to determine parameters for various
statistical distributions.

Up til now I have only implemented the distributions I have used
needed myself, but if it is of interest to include something like this
in gsl I would be more than happy to complete all the (continuous)
distributions, and improve (i.e. write) the documentation.

The included files are:

 gsl_distfit_core: This sets up some datastructures, and actually
                   calls the gsl solver.
 
 gsl_distfit_eval: This is a long list of small functions which
                   evaluate the various distribution functions, and
                   the derivatives needed for least squares fdf
                   fitting.

In addition there is a Makefile and a small test application:
dist-test.c


Joakim