def test_cluster_centroid_getitem():
indices = list(range(len(data)))
np.random.shuffle(indices) # None trivial ordering
advanced_indices = indices + [0, 1, 2, -1, -2, -3]
# Test without specifying refdata in ClusterCentroid
centroid = np.zeros(features_shape)
cluster = ClusterCentroid(centroid)
for idx in indices:
cluster.assign(idx, (idx + 1) * features)
# Test indexing
for i in advanced_indices:
assert_equal(cluster[i], indices[i])
# Test advanced indexing
assert_array_equal(cluster[advanced_indices],
[indices[i] for i in advanced_indices])
# Test index out of bounds
assert_raises(IndexError, cluster.__getitem__, len(cluster))
assert_raises(IndexError, cluster.__getitem__, -len(cluster) - 1)
# Test slicing and negative indexing
assert_equal(cluster[-1], indices[-1])
assert_array_equal(cluster[::2], indices[::2])
assert_arrays_equal(cluster[::-1], indices[::-1])
assert_arrays_equal(cluster[:-1], indices[:-1])
assert_arrays_equal(cluster[1:], indices[1:])
# Test with specifying refdata in ClusterCentroid
cluster.refdata = data
# Test indexing
for i in advanced_indices:
assert_array_equal(cluster[i], data[indices[i]])
# Test advanced indexing
assert_arrays_equal(cluster[advanced_indices],
[data[indices[i]] for i in advanced_indices])
# Test index out of bounds
assert_raises(IndexError, cluster.__getitem__, len(cluster))
assert_raises(IndexError, cluster.__getitem__, -len(cluster) - 1)
# Test slicing and negative indexing
assert_array_equal(cluster[-1], data[indices[-1]])
assert_arrays_equal(cluster[::2], [data[i] for i in indices[::2]])
assert_arrays_equal(cluster[::-1], [data[i] for i in indices[::-1]])
assert_arrays_equal(cluster[:-1], [data[i] for i in indices[:-1]])
assert_arrays_equal(cluster[1:], [data[i] for i in indices[1:]])
def test_cluster_centroid_getitem():
indices = list(range(len(data)))
np.random.shuffle(indices) # None trivial ordering
advanced_indices = indices + [0, 1, 2, -1, -2, -3]
# Test without specifying refdata in ClusterCentroid
centroid = np.zeros(features_shape)
cluster = ClusterCentroid(centroid)
for idx in indices:
cluster.assign(idx, (idx+1)*features)
# Test indexing
for i in advanced_indices:
assert_equal(cluster[i], indices[i])
# Test advanced indexing
assert_array_equal(cluster[advanced_indices],
[indices[i] for i in advanced_indices])
# Test index out of bounds
assert_raises(IndexError, cluster.__getitem__, len(cluster))
assert_raises(IndexError, cluster.__getitem__, -len(cluster)-1)
# Test slicing and negative indexing
assert_equal(cluster[-1], indices[-1])
assert_array_equal(cluster[::2], indices[::2])
assert_arrays_equal(cluster[::-1], indices[::-1])
assert_arrays_equal(cluster[:-1], indices[:-1])
assert_arrays_equal(cluster[1:], indices[1:])
# Test with specifying refdata in ClusterCentroid
cluster.refdata = data
# Test indexing
for i in advanced_indices:
assert_array_equal(cluster[i], data[indices[i]])
# Test advanced indexing
assert_arrays_equal(cluster[advanced_indices],
[data[indices[i]] for i in advanced_indices])
# Test index out of bounds
assert_raises(IndexError, cluster.__getitem__, len(cluster))
assert_raises(IndexError, cluster.__getitem__, -len(cluster)-1)
# Test slicing and negative indexing
assert_array_equal(cluster[-1], data[indices[-1]])
assert_arrays_equal(cluster[::2], [data[i] for i in indices[::2]])
assert_arrays_equal(cluster[::-1], [data[i] for i in indices[::-1]])
assert_arrays_equal(cluster[:-1], [data[i] for i in indices[:-1]])
assert_arrays_equal(cluster[1:], [data[i] for i in indices[1:]])
def test_cluster_centroid_iter():
indices = list(range(len(data)))
np.random.shuffle(indices) # None trivial ordering
# Test without specifying refdata in ClusterCentroid
centroid = np.zeros(features_shape)
cluster = ClusterCentroid(centroid)
for idx in indices:
cluster.assign(idx, (idx + 1) * features)
assert_array_equal(cluster.indices, indices)
assert_array_equal(list(cluster), indices)
# Test with specifying refdata in ClusterCentroid
cluster.refdata = data
assert_arrays_equal(list(cluster), [data[i] for i in indices])
def test_cluster_centroid_iter():
indices = list(range(len(data)))
np.random.shuffle(indices) # None trivial ordering
# Test without specifying refdata in ClusterCentroid
centroid = np.zeros(features_shape)
cluster = ClusterCentroid(centroid)
for idx in indices:
cluster.assign(idx, (idx+1)*features)
assert_array_equal(cluster.indices, indices)
assert_array_equal(list(cluster), indices)
# Test with specifying refdata in ClusterCentroid
cluster.refdata = data
assert_arrays_equal(list(cluster), [data[i] for i in indices])