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Re: [Help-gsl] Re: non-linear least squares fitting

From: Barrett Foat
Subject: Re: [Help-gsl] Re: non-linear least squares fitting
Date: Wed, 5 Dec 2007 15:20:13 -0600 (CST)

I implement fdf using numerical partial differentiation of f.

This method (numerical partial differentials) appeared to work;
is this a reasonable approach?

Yes, the df and fdf functions need to caluclate the numerical partial derivatives given the current values of the arguments (vector x in the docs) and your independent variable data.

To my knowledge, the approach you took is the only reasonable approach.

Barrett Foat

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