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:	array

Notes

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