Python Connectivity.weighted_phase_lag_index Examples

Example #1

File: test_connectivity.py Project: vibhaviswana/spectral_connectivity

def test_weighted_phase_lag_index_sets_zero_phase_signals_to_zero():
    n_time_samples, n_trials, n_tapers, n_fft_samples, n_signals = (1, 30, 1,
                                                                    1, 2)
    fourier_coefficients = np.zeros(
        (n_time_samples, n_trials, n_tapers, n_fft_samples, n_signals),
        dtype=np.complex)

    fourier_coefficients[..., :] = [2 * np.exp(1j * 0), 3 * np.exp(1j * 0)]
    expected_phase_lag_index = np.zeros((2, 2))

    this_Conn = Connectivity(fourier_coefficients=fourier_coefficients)
    assert np.allclose(this_Conn.weighted_phase_lag_index().squeeze(),
                       expected_phase_lag_index)

Example #2

File: test_connectivity.py Project: vibhaviswana/spectral_connectivity

def test_weighted_phase_lag_index_is_same_as_phase_lag_index():
    n_time_samples, n_trials, n_tapers, n_fft_samples, n_signals = (1, 30, 1,
                                                                    1, 2)
    fourier_coefficients = np.zeros(
        (n_time_samples, n_trials, n_tapers, n_fft_samples, n_signals),
        dtype=np.complex)

    fourier_coefficients[..., :] = [
        1 * np.exp(1j * 3 * np.pi / 4), 1 * np.exp(1j * 5 * np.pi / 4)
    ]

    this_Conn = Connectivity(fourier_coefficients=fourier_coefficients)
    assert np.allclose(this_Conn.phase_lag_index(),
                       this_Conn.weighted_phase_lag_index())