statsmodels.genmod.families.links.NegativeBinomial.inverse¶

NegativeBinomial.inverse(z)[source]¶

Inverse of the negative binomial transform

Parameters:¶

z : array_like¶

The value of the inverse of the negative binomial link at p.

Returns:¶

p – Mean parameters

Return type:¶

ndarray

Notes

g^(-1)(z) = exp(z)/(alpha*(1-exp(z)))