[AstroPy] Modelling with weights

[Thomas Marsh]

Hello,


I am interested in using astropy.modeling. Am I right in thinking that in
the case of least squares, the usual inverse variance weights for chi**2
minimisation would be obtained by setting weights = 1/(standard deviation)
rather than 1/(variance)? (I deduced this from the code for LevMarLSQFitter
and my understanding of scipy.optimize.leastsq)


Cheers,


Tom
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