Hi Andreas,
Thanks for noticing and correcting this unexpected scaling! The addition to
get the unscaled version is also very welcome.
All the best,
Marten
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Hi,
in [1] the scaling factor for the covariance matrix of `np.polyfit` was
discussed. The conclusion was, that it is non-standard and a patch might be
in order to correct this. Pull request [2] changes the factor from
chisq(popt)/(M-N-2) to chisq(popt)/(M-N) (with M=number of point, N=number
of p
