def test_find_ch_connectivity():
"""Test computing the connectivity matrix."""
data_path = testing.data_path()
raw = read_raw_fif(raw_fname, preload=True)
sizes = {'mag': 828, 'grad': 1700, 'eeg': 386}
nchans = {'mag': 102, 'grad': 204, 'eeg': 60}
for ch_type in ['mag', 'grad', 'eeg']:
conn, ch_names = find_ch_connectivity(raw.info, ch_type)
# Silly test for checking the number of neighbors.
assert_equal(conn.getnnz(), sizes[ch_type])
assert_equal(len(ch_names), nchans[ch_type])
pytest.raises(ValueError, find_ch_connectivity, raw.info, None)
# Test computing the conn matrix with gradiometers.
conn, ch_names = _compute_ch_connectivity(raw.info, 'grad')
assert_equal(conn.getnnz(), 2680)
# Test ch_type=None.
raw.pick_types(meg='mag')
find_ch_connectivity(raw.info, None)
bti_fname = op.join(data_path, 'BTi', 'erm_HFH', 'c,rfDC')
bti_config_name = op.join(data_path, 'BTi', 'erm_HFH', 'config')
raw = read_raw_bti(bti_fname, bti_config_name, None)
_, ch_names = find_ch_connectivity(raw.info, 'mag')
assert 'A1' in ch_names
ctf_fname = op.join(data_path, 'CTF', 'testdata_ctf_short.ds')
raw = read_raw_ctf(ctf_fname)
_, ch_names = find_ch_connectivity(raw.info, 'mag')
assert 'MLC11' in ch_names
pytest.raises(ValueError, find_ch_connectivity, raw.info, 'eog')
def test_find_ch_connectivity():
"""Test computing the connectivity matrix."""
data_path = testing.data_path()
raw = read_raw_fif(raw_fname, preload=True)
sizes = {'mag': 828, 'grad': 1700, 'eeg': 386}
nchans = {'mag': 102, 'grad': 204, 'eeg': 60}
for ch_type in ['mag', 'grad', 'eeg']:
conn, ch_names = find_ch_connectivity(raw.info, ch_type)
# Silly test for checking the number of neighbors.
assert_equal(conn.getnnz(), sizes[ch_type])
assert_equal(len(ch_names), nchans[ch_type])
assert_raises(ValueError, find_ch_connectivity, raw.info, None)
# Test computing the conn matrix with gradiometers.
conn, ch_names = _compute_ch_connectivity(raw.info, 'grad')
assert_equal(conn.getnnz(), 2680)
# Test ch_type=None.
raw.pick_types(meg='mag')
find_ch_connectivity(raw.info, None)
bti_fname = op.join(data_path, 'BTi', 'erm_HFH', 'c,rfDC')
bti_config_name = op.join(data_path, 'BTi', 'erm_HFH', 'config')
raw = read_raw_bti(bti_fname, bti_config_name, None)
_, ch_names = find_ch_connectivity(raw.info, 'mag')
assert_true('A1' in ch_names)
ctf_fname = op.join(data_path, 'CTF', 'testdata_ctf_short.ds')
raw = read_raw_ctf(ctf_fname)
_, ch_names = find_ch_connectivity(raw.info, 'mag')
assert_true('MLC11' in ch_names)
assert_raises(ValueError, find_ch_connectivity, raw.info, 'eog')