scalemixture.py 文件源码

def __call__(self, x):

        from scipy.special import gammaln

        return self.a * x - \
               self.n * gammaln(numpy.clip(x, 1e-308, 1e308)) + \
               self.b * log(x), \
               self.a - self.n * psi(x) + self.b / x