[SciPy-dev] least squares error
Ondrej Certik
ondrej@certik...
Mon Mar 9 08:16:03 CDT 2009
Hi,
I think each time I used leastsq, I also needed to calculate the
errors in the fitted parameters. I use this method, that takes the
output of leastsq and returns the parameters+errors.
def calc_error(args):
p, cov, info, mesg, success = args
chisq=sum(info["fvec"]*info["fvec"])
dof=len(info["fvec"])-len(p)
sigma = array([sqrt(cov[i,i])*sqrt(chisq/dof) for i in range(len(p))])
return p, sigma
let's integrate this with leastsq? E.g. add a new key in the info dict?
Ondrej
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