Thank you very much for your reply. You didn't misunderstand my question. The approach you suggested seems perfectly fine to me. However, when I tried it I got stuck when generating the Jacobi-matrix.
I hardly have any experience in dealing with matrix calculation, so I am not sure if I ran...
Dear All,
I would like to least square fit a number of measurements using several nonlinear functions with shared parameters (similar to the advanced fitting in Origin) using Mathematica.
Therefor I would be interested in an Algorithm like Gauss-Newton that fits several data-set to several...