statsmodels.genmod.families.links.LogC.inverse_deriv2

LogC.inverse_deriv2(z)

Second derivative of the inverse link function g^(-1)(z).

Parameters:

z (array_like) – The inverse of the link function at p

Returns:

g^(-1)’’(z) – The value of the second derivative of the inverse of the log-complement function.

Return type:

ndarray