statsmodels.genmod.families.links.inverse_squared.inverse_deriv¶
-
inverse_squared.
inverse_deriv
(z)¶ Derivative of the inverse of the power transform
Parameters: z (array-like) – z is usually the linear predictor for a GLM or GEE model. Returns: - g^(-1)’(z) (array) – The value of the derivative of the inverse of the power transform
- function