statsmodels.genmod.families.family.NegativeBinomial.weights

NegativeBinomial.weights(mu)

Weights for IRLS steps

Parameters:

muarray_like

The transformed mean response variable in the exponential family

Returns:

wndarray

The weights for the IRLS steps

Notes

$$w=1/(g^{\prime }(\mu {)}^2\ast Var(\mu ))$$