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[Help-gsl] polynomial fitting using nonlinear least-squares fitting
From: |
Lucas Grijander |
Subject: |
[Help-gsl] polynomial fitting using nonlinear least-squares fitting |
Date: |
Tue, 05 Dec 2006 18:24:24 +0100 |
Hi all!
I have to model some 3D data by using multidimensional polynomials. I'm
trying to use the nonlinear least-squares fitting functions from GSL. I'm
not sure if it is the best option, but I'm having problemes of convergence.
The polynomial function should be like this:
Z = f(X,Y)
Z = c0 + c1X + c2Y + c3X2 + c4Y2 + .....
How should I define the function to minimize in the code? the order of the
polynomial is defined by the user, and it can be different for X and Y.
thanks for your help!
Fistroman.
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- [Help-gsl] polynomial fitting using nonlinear least-squares fitting,
Lucas Grijander <=