def test_fit_transform(self):
X = np.random.randn(100, 2)
tica = _internal_tica(1, 1)
out = tica.fit_transform(X)
np.testing.assert_array_almost_equal(
out,
api.tica(data=X, lag=1, dim=1).get_output()[0])
def test_constant_features(self):
z = np.zeros((100, 10))
o = np.ones((100, 10))
tica_obj = _internal_tica(lag=10)
tica_obj.partial_fit(z)
with self.assertRaises(ZeroRankError):
tica_obj.timescales
with self.assertRaises(ZeroRankError):
tica_obj.transform(z)
tica_obj.partial_fit(o)
try:
tica_obj.timescales
tica_obj.transform(z)
except ZeroRankError:
self.fail('ZeroRankError was raised unexpectedly.')
tica_obj = _internal_tica(lag=10)
with self.assertRaises(ZeroRankError):
tica_obj.fit_transform(o)