statsmodels.genmod.families.links.LogLog.inverse_deriv2¶

LogLog.inverse_deriv2(z)[source]¶

Second derivative of the inverse of the Log-Log transform link function

Parameters:¶

zarray_like

The value of the inverse of the LogLog link function at p

Returns:¶

g^(-1)’’(z)ndarray

The second derivative of the inverse of the LogLog link function