def test_num_obs_linkage_multi_matrix(self):
# Tests num_obs_linkage with observation matrices of multiple sizes.
for n in xrange(2, 10):
X = np.random.rand(n, 4)
Y = pdist(X)
Z = linkage(Y)
assert_equal(num_obs_linkage(Z), n)
def test_num_obs_linkage_multi_matrix(self):
# Tests num_obs_linkage with observation matrices of multiple sizes.
for n in xrange(2, 10):
X = np.random.rand(n, 4)
Y = pdist(X)
Z = linkage(Y)
assert_equal(num_obs_linkage(Z), n)
def test_num_obs_linkage_4_and_up(self):
# Tests num_obs_linkage(Z) on linkage on observation sets between sizes
# 4 and 15 (step size 3).
for i in xrange(4, 15, 3):
y = np.random.rand(i * (i - 1) // 2)
Z = linkage(y)
assert_equal(num_obs_linkage(Z), i)
def test_num_obs_linkage_4_and_up(self):
# Tests num_obs_linkage(Z) on linkage on observation sets between sizes
# 4 and 15 (step size 3).
for i in xrange(4, 15, 3):
y = np.random.rand(i*(i-1)//2)
Z = linkage(y)
assert_equal(num_obs_linkage(Z), i)
def test_num_obs_linkage_2x4(self):
# Tests num_obs_linkage(Z) on linkage over 3 observations.
Z = np.asarray([[0, 1, 3.0, 2], [3, 2, 4.0, 3]], dtype=np.double)
assert_equal(num_obs_linkage(Z), 3)
def test_num_obs_linkage_1x4(self):
# Tests num_obs_linkage(Z) on linkage over 2 observations.
Z = np.asarray([[0, 1, 3.0, 2]], dtype=np.double)
assert_equal(num_obs_linkage(Z), 2)
def test_num_obs_linkage_2x4(self):
# Tests num_obs_linkage(Z) on linkage over 3 observations.
Z = np.asarray([[0, 1, 3.0, 2],
[3, 2, 4.0, 3]], dtype=np.double)
assert_equal(num_obs_linkage(Z), 3)
def test_num_obs_linkage_1x4(self):
# Tests num_obs_linkage(Z) on linkage over 2 observations.
Z = np.asarray([[0, 1, 3.0, 2]], dtype=np.double)
assert_equal(num_obs_linkage(Z), 2)