statsmodels.genmod.families.links.nbinom.deriv¶
-
nbinom.
deriv
(p)¶ Derivative of the negative binomial transform
- Parameters
- parray_like
Mean parameters
- Returns
- g’(p)
ndarray
The derivative of the negative binomial transform link function
- g’(p)
Notes
g’(x) = 1/(x+alpha*x^2)