コード例 #1
0
def test_psdestimator():
    """Test methods of PSDEstimator."""
    raw = io.read_raw_fif(raw_fname)
    events = read_events(event_name)
    picks = pick_types(raw.info,
                       meg=True,
                       stim=False,
                       ecg=False,
                       eog=False,
                       exclude='bads')
    picks = picks[1:13:3]
    epochs = Epochs(raw,
                    events,
                    event_id,
                    tmin,
                    tmax,
                    picks=picks,
                    baseline=(None, 0),
                    preload=True)
    epochs_data = epochs.get_data()
    psd = PSDEstimator(2 * np.pi, 0, np.inf)
    y = epochs.events[:, -1]
    X = psd.fit_transform(epochs_data, y)

    assert (X.shape[0] == epochs_data.shape[0])
    assert_array_equal(psd.fit(epochs_data, y).transform(epochs_data), X)

    # Test init exception
    pytest.raises(ValueError, psd.fit, epochs, y)
    pytest.raises(ValueError, psd.transform, epochs)
コード例 #2
0
ファイル: test_transformer.py プロジェクト: vwyart/mne-python
def test_psdestimator():
    """Test methods of PSDEstimator
    """
    raw = io.Raw(raw_fname, preload=False)
    events = read_events(event_name)
    picks = pick_types(
        raw.info, meg=True, stim=False, ecg=False, eog=False, exclude='bads')
    picks = picks[1:13:3]
    epochs = Epochs(
        raw,
        events,
        event_id,
        tmin,
        tmax,
        picks=picks,
        baseline=(None, 0),
        preload=True)
    epochs_data = epochs.get_data()
    psd = PSDEstimator(2 * np.pi, 0, np.inf)
    y = epochs.events[:, -1]
    X = psd.fit_transform(epochs_data, y)

    assert_true(X.shape[0] == epochs_data.shape[0])
    assert_array_equal(psd.fit(epochs_data, y).transform(epochs_data), X)

    # Test init exception
    assert_raises(ValueError, psd.fit, epochs, y)
    assert_raises(ValueError, psd.transform, epochs, y)
コード例 #3
0
ファイル: psd_visualizer.py プロジェクト: syzhang/pycnbi
    # psde.transform = [channels x freqs]
    psd = psde.transform(w)

    return psd


if __name__ == '__main__':
    sr = StreamReceiver(window_size=w_seconds,
                        amp_name=amp_name,
                        amp_serial=amp_serial)
    sfreq = sr.sample_rate
    psde = PSDEstimator(sfreq=sfreq,
                        fmin=fmin,
                        fmax=fmax,
                        bandwidth=None,
                        adaptive=False,
                        low_bias=True,
                        n_jobs=1,
                        normalization='length',
                        verbose=None)
    ch_names = sr.get_channel_names()
    fq_res = 1 / w_seconds
    hz_list = []
    f = fmin
    while f < fmax:
        hz_list.append(f)
        f += fq_res
    picks = [ch_names.index(ch) for ch in channel_picks]
    psd = get_psd(sr, psde, picks).T  # freq x ch
    assert len(hz_list) == psd.shape[0], (len(hz_list), psd.shape[0])
    cv2.namedWindow("img", cv2.WINDOW_AUTOSIZE)