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Poisson.weights()

statsmodels.genmod.families.family.Poisson.weights

Poisson.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))

Links:

http://statsmodels.sourceforge.net/stable/generated/statsmodels.genmod.families.family.Poisson.weights.html

doc_statsmodels

2017-01-18 16:13:57

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