def test_pid_ccs1():
"""
Test iccs on a generic distribution.
"""
d = bivariates['gband']
pid = PID_CCS(d, ((0, ), (1, )), (2, ))
assert pid[((0, ), (1, ))] == pytest.approx(0.81127812445913283)
assert pid[((0, ), )] == pytest.approx(0.5)
assert pid[((1, ), )] == pytest.approx(0.5)
assert pid[((0, 1), )] == pytest.approx(0.0)
def test_pid_ccs4():
d = bivariates['gband']
pid = PID_CCS(d)
string = """\
+--------+--------+--------+
| I_ccs | I_r | pi |
+--------+--------+--------+
| {0:1} | 1.8113 | 0.0000 |
| {0} | 1.3113 | 0.5000 |
| {1} | 1.3113 | 0.5000 |
| {0}{1} | 0.8113 | 0.8113 |
+--------+--------+--------+"""
assert str(pid) == string
def test_pid_ccs3():
"""
Test iccs on another generic distribution.
"""
d = trivariates['anddup']
pid = PID_CCS(d)
for atom in pid._lattice:
if atom == ((0, ), (1, ), (2, )):
assert pid[atom] == pytest.approx(0.10375937481971094)
elif atom in [((0, ), (2, )), ((1, ), )]:
assert pid[atom] == pytest.approx(0.20751874963942191)
elif atom in [((2, ), (0, 1)), ((0, ), (1, 2)), ((0, 1), (0, 2)),
((0, 1), (1, 2)), ((0, 2), (1, 2)), ((0, 1, 2), )]:
assert pid[atom] == pytest.approx(0.14624062518028902)
elif atom in [((2, ), ), ((0, ), ), ((0, 1), (0, 2), (1, 2)),
((0, 2), )]:
assert pid[atom] == pytest.approx(-0.14624062518028902)
else:
assert pid[atom] == pytest.approx(0.0)