genmod.families.links.nbinom()

statsmodels.genmod.families.links.nbinom

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