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:¶

z : array_like¶

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

Returns:¶

g^(-1)’’(z) – The second derivative of the inverse of the LogLog link function

Return type:¶

ndarray