def _argcheck(self, c, a, b): self.c = c self.a = a self.b = b self._Fa, self._Fb = loggamma.cdf([a, b], c) self._delta = self._Fb - self._Fa return (b > a)
def _cdf(self, x, c, a, b): return (loggamma.cdf(x, c) - self._Fa) / self._delta