def test_standardscaler():
    (X, _) = get_dummy_data(nchar=0, ndate=0, nrows=10)
    ss = SkippaStandardScaler(cols=columns())
    res = ss.fit_transform(X)
    threshold = 0.01
    assert (np.abs((0 - res.mean())) < threshold).all()
def test_standardscaler():
    (X, _) = get_dummy_data(nchar=0, ndate=0, nrows=10)
    ss = SkippaStandardScaler(cols=columns())
    res = ss.fit_transform(X)
    threshold = 0.01
    assert (np.abs((0 - res.mean())) < threshold).all()