univariate.py 文件源码

def _sample(self, n_samples):
        alpha, beta = maybe_explicit_broadcast(
            self.alpha, self.beta, 'alpha', 'beta')
        x = tf.random_gamma([n_samples], alpha, beta=1, dtype=self.dtype)
        y = tf.random_gamma([n_samples], beta, beta=1, dtype=self.dtype)
        return x / (x + y)