ul_policies.py 文件源码

def probabilities(self, Y):
        """Probabilities of parameter vectors Y

        Parameters
        ----------
        Y : array-like, shape (num_samples, n_weights)
            2d array of parameter vectors

        Returns
        ----------
        resp : array-like, shape (num_samples)
            the probabilities of the samples under this policy

        """
        if not compatible_version("scipy", ">= 0.14"):
            raise ImportError(
                "SciPy >= 0.14 is required for "
                "'scipy.stats.multivariate_normal'.")
        from scipy.stats import multivariate_normal
        return multivariate_normal(mean=self.mean, cov=self.Sigma).pdf(Y)