statsmodels.genmod.families.family.NegativeBinomial.weights¶
method
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NegativeBinomial.
weights
(mu)¶ Weights for IRLS steps
Parameters: mu : array-like
The transformed mean response variable in the exponential family
Returns: w : array
The weights for the IRLS steps
Notes
\[w = 1 / (g'(\mu)^2 * Var(\mu))\]