def deriv(self, p):
    "\n        Derivative of C-Log-Log transform link function\n\n        Parameters\n        ----------\n        p : array_like\n            Mean parameters\n\n        Returns\n        -------\n        g'(p) : ndarray\n            The derivative of the CLogLog transform link function\n\n        Notes\n        -----\n        g'(p) = - 1 / ((p-1)*log(1-p))\n        "
    p = self._clean(p)
    return (1.0 / ((p - 1) * np.log((1 - p))))
Derivative of C-Log-Log transform link function

Parameters
----------
p : array_like
    Mean parameters

Returns
-------
g'(p) : ndarray
    The derivative of the CLogLog transform link function

Notes
-----
g'(p) = - 1 / ((p-1)*log(1-p))
def deriv(self, p):
    "\n        Derivative of C-Log-Log transform link function\n\n        Parameters\n        ----------\n        p : array_like\n            Mean parameters\n\n        Returns\n        -------\n        g'(p) : ndarray\n            The derivative of the CLogLog transform link function\n\n        Notes\n        -----\n        g'(p) = - 1 / ((p-1)*log(1-p))\n        "
    p = self._clean(p)
    return (1.0 / ((p - 1) * np.log((1 - p))))