Trying to do a curve fitting but having trouble getting it to work.

[Matt J]

Looks fine to me, though I don't know why you don't just use polyfit.

[Dillon Romans]

Its an assignment that restricts us from using that function. Do you happen to know why I keep getting the "local minimum possible" error?

[Matt J]

If it were an error, lsqcurvefit would tell you so, for example:

>> lsqcurvefit(1)

Error using lsqcurvefit (line 171)

The input to LSQCURVEFIT should be either a structure with valid fields or consist of at least four arguments.

Answer 1

[Matt J]

Do you happen to know why I keep getting the "local minimum possible"

Because lsqcurvefit thinks it succeeded in finding a solution (and maybe it did!).