statsmodels.genmod.families.links.Power.inverse_deriv2

Power.inverse_deriv2(z)[source]

Second derivative of the inverse of the power transform

Parameters:
zarray_like

z is usually the linear predictor for a GLM or GEE model.

Returns:
g^(-1)’(z)ndarray

The value of the derivative of the inverse of the power transform

function

Last update: Apr 12, 2024