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)