statsmodels.genmod.families.links.nbinom¶
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class
statsmodels.genmod.families.links.
nbinom
(alpha=1.0)[source]¶ The negative binomial link function.
Notes
g(p) = log(p/(p + 1/alpha))
nbinom is an alias of NegativeBinomial. nbinom = NegativeBinomial(alpha=1.)
Methods
deriv
(p)Derivative of the negative binomial transform inverse
(z)Inverse of the negative binomial transform inverse_deriv
(z)Derivative of the inverse of the negative binomial transform