Hi, I do not manage to perform best fit analysis on a series of point sets (hundreds) automatically using different models and receiving an error when using exponential best fit due to upper and lower bonds on coefficients.

I created a script which will go trough a series of data sets (hundreds) performing best fit analysis using different models (linear, gaussian and exponential). I receive an error when performing the exponential best fit method: "Try using or tightening upper and lower bounds on coefficients." I tested the curve fitting app on one data set and work fines. The app estimates startpoint and lower and upper bounds automatically. It is not clear to me how to automatically include this parameters into my code to perform the best fit of all my curves.

Thanks for your help

Regards

Fabio