def test_define_candidates():
"""Test candidate definition from a list of procs and a list of samples."""
target = 1
tau_sources = 3
max_lag_sources = 10
current_val = (target, 10)
procs = [target]
samples = np.arange(current_val[1] - 1, current_val[1] - max_lag_sources,
-tau_sources)
# Test if candidates that are added manually to the conditioning set are
# removed from the candidate set.
nw = MultivariateMI()
settings = [{
'add_conditionals': None
}, {
'add_conditionals': (2, 3)
}, {
'add_conditionals': [(2, 3), (4, 1)]
}]
for s in settings:
nw.settings = s
candidates = nw._define_candidates(procs, samples)
assert (1, 9) in candidates, 'Sample missing from candidates: (1, 9).'
assert (1, 6) in candidates, 'Sample missing from candidates: (1, 6).'
assert (1, 3) in candidates, 'Sample missing from candidates: (1, 3).'
settings = [{
'add_conditionals': [(1, 9)]
}, {
'add_conditionals': [(1, 9), (2, 3), (4, 1)]
}]
for s in settings:
nw.settings = s
candidates = nw._define_candidates(procs, samples)
assert (1, 9) not in candidates, 'Sample missing from candidates: (1, 9).'
assert (1, 6) in candidates, 'Sample missing from candidates: (1, 6).'
assert (1, 3) in candidates, 'Sample missing from candidates: (1, 3).'
def test_define_candidates():
"""Test candidate definition from a list of procs and a list of samples."""
target = 1
tau_sources = 3
max_lag_sources = 10
current_val = (target, 10)
procs = [target]
samples = np.arange(current_val[1] - 1, current_val[1] - max_lag_sources,
-tau_sources)
# Test if candidates that are added manually to the conditioning set are
# removed from the candidate set.
nw = MultivariateMI()
nw.current_value = current_val
settings = [{
'add_conditionals': None
}, {
'add_conditionals': (2, 3)
}, {
'add_conditionals': [(2, 3), (4, 1)]
}, {
'add_conditionals': [(1, 9)]
}, {
'add_conditionals': [(1, 9), (2, 3), (4, 1)]
}]
for s in settings:
nw.settings = s
candidates = nw._define_candidates(procs, samples)
assert (1, 9) in candidates, 'Sample missing from candidates: (1, 9).'
assert (1, 6) in candidates, 'Sample missing from candidates: (1, 6).'
assert (1, 3) in candidates, 'Sample missing from candidates: (1, 3).'
if s['add_conditionals'] is not None:
if type(s['add_conditionals']) is tuple:
cond_ind = nw._lag_to_idx([s['add_conditionals']])
else:
cond_ind = nw._lag_to_idx(s['add_conditionals'])
for c in cond_ind:
assert c not in candidates, (
'Sample added erronously to candidates: {}.'.format(c))
def test_check_source_set():
"""Test the method _check_source_set.
This method sets the list of source processes from which candidates are
taken for multivariate MI estimation.
"""
data = Data()
data.generate_mute_data(100, 5)
nw_0 = MultivariateMI()
nw_0.settings = {'verbose': True}
# Add list of sources.
sources = [1, 2, 3]
nw_0._check_source_set(sources, data.n_processes)
assert nw_0.source_set == sources, 'Sources were not added correctly.'
# Assert that initialisation fails if the target is also in the source list
sources = [0, 1, 2, 3]
nw_0.target = 0
with pytest.raises(RuntimeError):
nw_0._check_source_set(sources=[0, 1, 2, 3],
n_processes=data.n_processes)
# Test if a single source, no list is added correctly.
sources = 1
nw_0._check_source_set(sources, data.n_processes)
assert (type(nw_0.source_set) is list)
# Test if 'all' is handled correctly
nw_0.target = 0
nw_0._check_source_set('all', data.n_processes)
assert nw_0.source_set == [1, 2, 3, 4], 'Sources were not added correctly.'
# Test invalid inputs.
with pytest.raises(RuntimeError): # sources greater than no. procs
nw_0._check_source_set(8, data.n_processes)
with pytest.raises(RuntimeError): # negative value as source
nw_0._check_source_set(-3, data.n_processes)
def test_check_source_set():
"""Test the method _check_source_set.
This method sets the list of source processes from which candidates are
taken for multivariate MI estimation.
"""
data = Data()
data.generate_mute_data(100, 5)
nw_0 = MultivariateMI()
nw_0.settings = {'verbose': True}
# Add list of sources.
sources = [1, 2, 3]
nw_0._check_source_set(sources, data.n_processes)
assert nw_0.source_set == sources, 'Sources were not added correctly.'
# Assert that initialisation fails if the target is also in the source list
sources = [0, 1, 2, 3]
nw_0.target = 0
with pytest.raises(RuntimeError):
nw_0._check_source_set(sources=[0, 1, 2, 3],
n_processes=data.n_processes)
# Test if a single source, no list is added correctly.
sources = 1
nw_0._check_source_set(sources, data.n_processes)
assert (type(nw_0.source_set) is list)
# Test if 'all' is handled correctly
nw_0.target = 0
nw_0._check_source_set('all', data.n_processes)
assert nw_0.source_set == [1, 2, 3, 4], 'Sources were not added correctly.'
# Test invalid inputs.
with pytest.raises(RuntimeError): # sources greater than no. procs
nw_0._check_source_set(8, data.n_processes)
with pytest.raises(RuntimeError): # negative value as source
nw_0._check_source_set(-3, data.n_processes)