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TestLocalScore.py
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import unittest
from causallearn.utils.GESUtils import *
from causallearn.score.LocalScoreFunctionClass import LocalScoreClass
class TestLocalScore(unittest.TestCase):
np.random.seed(10)
X = np.random.randn(300, 1)
X_prime = np.random.randn(300, 1)
Y = X + 0.5 * np.random.randn(300, 1)
Z = Y + 0.5 * np.random.randn(300, 1)
data = np.hstack((X, X_prime, Y, Z))
np.random.seed(10)
X_slash = np.random.randint(0, 10, (300, 1))
X_prime_slash = np.random.randint(0, 10, (300, 1))
Y_slash = X_slash + np.random.randint(0, 10, (300, 1))
Z_slash = Y_slash + np.random.randint(0, 10, (300, 1))
data_slash = np.hstack((X_slash, X_prime_slash, Y_slash, Z_slash))
def test_local_score_marginal_multi(self):
parameters = {"dlabel": {}}
for i in range(self.data.shape[1]):
parameters["dlabel"][i] = i
localScoreClass = LocalScoreClass(
data=self.data,
local_score_fun=local_score_marginal_multi,
parameters=parameters,
)
q = localScoreClass.score(0, [0])
p = localScoreClass.score(0, [1])
v = localScoreClass.score(0, [2])
assert q < v < p
def test_local_score_CV_multi(self):
parameters = {
"kfold": 10,
"lambda": 0.01,
"dlabel": {},
} # regularization parameter
for i in range(self.data.shape[1]):
parameters["dlabel"][i] = i
localScoreClass = LocalScoreClass(
data=self.data, local_score_fun=local_score_cv_multi, parameters=parameters
)
q = localScoreClass.score(0, [0])
p = localScoreClass.score(0, [1])
v = localScoreClass.score(0, [2])
assert q < v < p
def test_local_score_BIC(self):
parameters = {}
parameters["lambda_value"] = 2
localScoreClass = LocalScoreClass(
data=self.data, local_score_fun=local_score_BIC, parameters=parameters
)
q = localScoreClass.score(0, [0])
p = localScoreClass.score(0, [1])
v = localScoreClass.score(0, [2])
assert q < v < p
def test_local_score_CV_general(self):
parameters = {
"kfold": 10, # 10 fold cross validation
"lambda": 0.01,
} # regularization parameter
localScoreClass = LocalScoreClass(
data=self.data,
local_score_fun=local_score_cv_general,
parameters=parameters,
)
q = localScoreClass.score(0, [0])
p = localScoreClass.score(0, [1])
v = localScoreClass.score(0, [2])
assert q < v < p
def test_local_score_marginal_general(self):
parameters = {}
localScoreClass = LocalScoreClass(
data=self.data,
local_score_fun=local_score_marginal_general,
parameters=parameters,
)
q = localScoreClass.score(0, [0])
p = localScoreClass.score(0, [1])
v = localScoreClass.score(0, [2])
assert q < v < p
def test_local_score_BDeu(self):
localScoreClass = LocalScoreClass(
data=self.data_slash, local_score_fun=local_score_BDeu, parameters=None
)
q = localScoreClass.score(0, [0])
p = localScoreClass.score(0, [1])
v = localScoreClass.score(0, [2])
assert q < v < p