def test_functional_cc(self):
"""Functional test for cc MI."""
# build the testing data
x = np.random.rand(n_times, n_mv, n_samples)
y = np.random.normal(size=(1, 1, n_samples,))
x[sl_effect, :, :] += y
y = np.tile(y, (n_times, 1, 1))
# functional test
for cop in [True, False]:
for imp in [True, False]:
c = GCMIEstimator(mi_type='cc', tensor=imp, copnorm=cop)
mi = c.estimate(x, y)
self._compare_effects(effect, mi)
def test_functional_cd(self):
"""Functional test for cd MI."""
# build the testing data
x = np.random.rand(n_times, n_mv, n_samples)
x[sl_effect, :, 0:50] += 10.
x[sl_effect, :, 50::] -= 10.
y = np.array([0] * 50 + [1] * 50)
# functional test
for cop in [True, False]:
for imp in [True, False]:
c = GCMIEstimator(mi_type='cd', tensor=imp, copnorm=cop)
mi = c.estimate(x, y)
self._compare_effects(effect, mi)
def test_functional_ccd(self):
"""Functional test for ccd MI."""
# build the testing data
x = np.random.rand(n_times, n_mv, n_samples)
y_pos = np.random.normal(size=(1, 1, 50))
y_neg = np.random.normal(size=(1, 1, 50))
x[sl_effect, :, 0:50] += y_pos
x[sl_effect, :, 50::] -= y_neg
y = np.tile(np.concatenate((y_pos, y_neg), axis=2), (n_times, 1, 1))
z = np.array([0] * 50 + [1] * 50)
# functional test
for cop in [True, False]:
for imp in [True, False]:
c = GCMIEstimator(mi_type='ccd', tensor=imp, copnorm=cop)
mi = c.estimate(x, y, z=z)
self._compare_effects(effect, mi)
def __init__(self, inference='rfx', estimator=None, kernel=None,
verbose=None):
"""Init."""
WfBase.__init__(self)
assert inference in ['ffx', 'rfx'], (
"'inference' input parameter should either be 'ffx' or 'rfx'")
self._mi_type = 'cc'
if estimator is None:
estimator = GCMIEstimator(mi_type='cc', copnorm=False,
verbose=verbose)
assert estimator.settings['mi_type'] == self._mi_type
self._copnorm = isinstance(estimator, GCMIEstimator)
self._inference = inference
self.estimator = estimator
self._gcrn = inference == 'rfx'
self._kernel = kernel
set_log_level(verbose)
self.clean()
self._wf_stats = WfStats(verbose=verbose)
# update internal config
self.attrs.update(dict(mi_type=self._mi_type, inference=inference,
kernel=kernel))
logger.info(f"Workflow for computing comodulations between distant "
f"brain areas ({inference})")
def test_smoke_ccc(self):
"""Smoke test for ccc MI."""
for cop in [True, False]:
for cat in [None, categories]:
# tensor-based
c = GCMIEstimator(mi_type='ccc', tensor=True, copnorm=cop)
mi_t = c.estimate(x, y_c, z=z_c, categories=cat)
# vector-based
c = GCMIEstimator(mi_type='ccc', tensor=False, copnorm=cop)
mi_v = c.estimate(x, y_c, z=z_c, categories=cat)
np.testing.assert_array_almost_equal(mi_t, mi_v)
def test_support_dim(self):
"""Test the support for different dimensions."""
y = np.random.rand(100)
c = GCMIEstimator(mi_type='cc')
# 1d
x = np.random.rand(100)
c = GCMIEstimator(mi_type='cc')
mi = c.estimate(x, y)
assert mi.shape == (1, 1)
# 2d
x = np.random.rand(1, 100)
mi = c.estimate(x, y)
assert mi.shape == (1, 1)
# Nd
x = np.random.rand(4, 5, 6, 1, 100)
mi = c.estimate(x, y)
assert mi.shape == (1, 4, 5, 6)
# Convert to DatasetEphy
dt = DatasetEphy(coh, y=stim, nb_min_suj=10, times="times", roi="roi")
mi_type = 'cd'
inference = 'rfx'
kernel = None
if avg:
mcp = "fdr"
else:
mcp = "cluster"
estimator = GCMIEstimator(mi_type='cd',
copnorm=True,
biascorrect=True,
demeaned=False,
tensor=True,
gpu=False,
verbose=None)
wf = WfMi(mi_type, inference, verbose=True, kernel=kernel, estimator=estimator)
kw = dict(n_jobs=20, n_perm=200)
cluster_th = None # {float, None, 'tfce'}
mi, pvalues = wf.fit(dt, mcp=mcp, cluster_th=cluster_th, **kw)
###############################################################################
# Saving results
###############################################################################
# Path to results folder
