def test_invariance(self):
"""unit-sphere locations should remain unchanged."""
locs = [[1, 0, 0], [-1, 0, 0], [0, 1, 0], [0, -1, 0], [0, 0, 1],
[0, 0, -1]]
warp1 = warp_locations(locs)
warp2, c, r = warp_locations(locs, return_ellipsoid=True)
assert_allclose(warp1, locs, atol=1e-12)
assert_allclose(warp2, locs, atol=1e-12)
assert_allclose(c, 0, atol=1e-12)
assert_allclose(r, 1, atol=1e-12)
def test_eeglocations(self):
np.random.seed(42)
scale = np.random.rand(3) * 10 + 10
displace = np.random.randn(3) * 100
noise = np.random.randn(len(eeglocs), 3) * 5
assert_allclose(warp_locations(eeglocs), eeglocs, atol=1e-10)
assert_allclose(warp_locations(eeglocs * scale), eeglocs, atol=1e-10)
assert_allclose(warp_locations(eeglocs * scale + displace), eeglocs, atol=1e-10)
warp = warp_locations(eeglocs * scale + displace + noise)
assert_allclose(np.sum(warp**2, axis=1), 1, atol=1e-12) # all locations on unit shpere
def test_invariance(self):
"""unit-sphere locations should remain unchanged."""
locs = [[1, 0, 0], [-1, 0, 0],
[0, 1, 0], [0, -1, 0],
[0, 0, 1], [0, 0, -1]]
warp1 = warp_locations(locs)
warp2, c, r = warp_locations(locs, return_ellipsoid=True)
assert_allclose(warp1, locs, atol=1e-12)
assert_allclose(warp2, locs, atol=1e-12)
assert_allclose(c, 0, atol=1e-12)
assert_allclose(r, 1, atol=1e-12)
def test_eeglocations(self):
np.random.seed(42)
scale = np.random.rand(3) * 10 + 10
displace = np.random.randn(3) * 100
noise = np.random.randn(len(eeglocs), 3) * 5
assert_allclose(warp_locations(eeglocs), eeglocs, atol=1e-10)
assert_allclose(warp_locations(eeglocs * scale), eeglocs, atol=1e-10)
assert_allclose(warp_locations(eeglocs * scale + displace),
eeglocs,
atol=1e-10)
warp = warp_locations(eeglocs * scale + displace + noise)
assert_allclose(np.sum(warp**2, axis=1), 1,
atol=1e-12) # all locations on unit shpere
def test_interface(self):
self.assertRaises(TypeError, warp_locations)
self.assertEqual(warp_locations(np.eye(3)).shape, (3, 3)) # returns array
self.assertEqual(len(warp_locations(np.eye(3), return_ellipsoid=True)), 3) # returns tuple
def test_interface(self):
self.assertRaises(TypeError, warp_locations)
self.assertEqual(warp_locations(np.eye(3)).shape,
(3, 3)) # returns array
self.assertEqual(len(warp_locations(np.eye(3), return_ellipsoid=True)),
3) # returns tuple