Python _gs_decorrelation Beispiele

Beispiel #1

Datei: test_fastica.py Projekt: manhhomienbienthuy/scikit-learn

def test_gs():
    # Test gram schmidt orthonormalization
    # generate a random orthogonal  matrix
    rng = np.random.RandomState(0)
    W, _, _ = np.linalg.svd(rng.randn(10, 10))
    w = rng.randn(10)
    _gs_decorrelation(w, W, 10)
    assert_less((w ** 2).sum(), 1.e-10)
    w = rng.randn(10)
    u = _gs_decorrelation(w, W, 5)
    tmp = np.dot(u, W.T)
    assert_less((tmp[:5] ** 2).sum(), 1.e-10)

Beispiel #2

Datei: test_fastica.py Projekt: QPanProjects/Surrogate-Model

def test_gs():
    # Test gram schmidt orthonormalization
    # generate a random orthogonal  matrix
    rng = np.random.RandomState(0)
    W, _, _ = np.linalg.svd(rng.randn(10, 10))
    w = rng.randn(10)
    _gs_decorrelation(w, W, 10)
    assert_less((w**2).sum(), 1.e-10)
    w = rng.randn(10)
    u = _gs_decorrelation(w, W, 5)
    tmp = np.dot(u, W.T)
    assert_less((tmp[:5]**2).sum(), 1.e-10)