Python _X_operator Examples

Example #1

File: test_ridge.py Project: COGUS210/traffic_accident_Project

def test_x_operator(n_col):
    rng = np.random.RandomState(0)
    X = rng.randn(11, 8)
    X_m = rng.randn(8)
    sqrt_sw = rng.randn(len(X))
    Y = rng.randn(11, *n_col)
    A = rng.randn(9, *n_col)
    operator = _X_operator(sp.csr_matrix(X), X_m, sqrt_sw)
    reference_operator = np.hstack(
        [X - sqrt_sw[:, None] * X_m, sqrt_sw[:, None]])
    assert_allclose(reference_operator.dot(A), operator.dot(A))
    assert_allclose(reference_operator.T.dot(Y), operator.T.dot(Y))

Example #2

File: test_ridge.py Project: daniel-perry/scikit-learn

def test_x_operator(n_col):
    rng = np.random.RandomState(0)
    X = rng.randn(11, 8)
    X_m = rng.randn(8)
    sqrt_sw = rng.randn(len(X))
    Y = rng.randn(11, *n_col)
    A = rng.randn(9, *n_col)
    operator = _X_operator(sp.csr_matrix(X), X_m, sqrt_sw)
    reference_operator = np.hstack(
        [X - sqrt_sw[:, None] * X_m, sqrt_sw[:, None]])
    assert_allclose(reference_operator.dot(A), operator.dot(A))
    assert_allclose(reference_operator.T.dot(Y), operator.T.dot(Y))