Mathematica 9 is now available
Student Support Forum
Student Support Forum: 'FindFit error' topicStudent Support Forum > General > Archives > "FindFit error"

Next Comment >Help | Reply To Topic
Author Comment/Response
03/30/12 3:11pm

I have been using FindFit to determine the parameters for my data. I put in an estimate for each parameter but I still get an error.

models = \[Phi]s Exp[-Exp[0.92` (n - M)] + 0.92` (n - M) \[Alpha]]

fits = FindFit[data,
models, {{\[Phi]s, 10}, {n, -20}, {\[Alpha], -1}}, M]
FindFit::cvmit: Failed to converge to the requested accuracy or precision within 100 iterations.

If I pick a value for n FindFit works fine and I know the value should be within 2 of -20 most likely less. I've tried changing the value of n, but I still get the error. Any help would be appreciated.

URL: ,

Subject (listing for 'FindFit error')
Author Date Posted
FindFit error Nick 03/30/12 3:11pm
Re: FindFit error Bill Simpson 04/03/12 1:23pm
Next Comment >Help | Reply To Topic