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 Fitting to non linear data?

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pazmush Posted - 06/26/2012 : 07:32:45 AM
Hi

I have a formula, that works and the simulation looks ok, but when I come to fit the data it seems to only run a few iterations gives me obviously wrong parameters and only fits a curve to the very end of the data as seen in this picture.

Has anyone ever experienced this and know what I should do.

Also if anyone could tell me how to do the same in Matlab would be great...

thank you.

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