[SciPy-user] optimize.leastsq and uncertianty in results

[Stephen Walton]

R. Padraic Springuel wrote:

> Is there a way to get the uncertainty in the resultant parameters out 
> of the optimize.leastsq fitting function?

optimize.leastsq? reveals that it can return a dictionary of optional 
values, among which is the Jacobian matrix fjac at the final step.  The 
diagonal elements of fjac times its transpose can be taken as the 
squares of the errors in the corresponding coefficients.