Confused by nonlinear least square fitting example

[Simon <s dot martin at sheffield dot ac dot uk>]

I'm a newbie to GSL so please be nice if this is a dumb question.

In the main part of the example program for the Levenberg-Marquardt
fitter the pointer to the parameters for the gsl_multifit_funtion_fdf f
appears to be pointing at the data rather than the parameters:
e.g. f.params = &d;
where d is a data struct.

I don't get this.  Surely it should point to a vector of guesses at the
parameters that fit the model?

Simon

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* Dr Simon Martin			s.martin@shef.ac.uk		     *
* Department of Physics and Astronomy
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