3.5.5.2.1.5.1.9. statsmodels.genmod.families.family.InverseGaussian.weights¶
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InverseGaussian.
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 / (link’(mu)**2 * variance(mu))