NegativeBinomial.weights()

statsmodels.genmod.families.family.NegativeBinomial.weights

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 / (link?(mu)**2 * variance(mu))