test_online_GMM.py 文件源码

def test_initialize(self,window):
        points = np.random.randn(self.n_points,self.dim)
        GM = GaussianMixture(self.n_components,window=window)
        GM.initialize(points)

        checking.verify_covariance(GM.get('cov'),self.n_components,self.dim)
        checking.verify_means(GM.get('means'),self.n_components,self.dim)
        checking.verify_log_pi(GM.get('log_weights'),self.n_components)

        cov_chol = np.empty_like(GM.get('cov'))
        for i in range(self.n_components):
            cov_chol[i] = linalg.cholesky(GM.get('cov')[i],lower=True)

        assert_almost_equal(cov_chol,GM.get('cov_chol'))
        assert GM.get('_is_initialized') == True