Chi-Square test

Perform an independence test on discrete variables using Chi-Square test.


from causallearn.utils.cit import chisq
p = chisq(data, X, Y, conditioning_set)


data: numpy.ndarray, shape (n_samples, n_features). Data, where n_samples is the number of samples and n_features is the number of features.

X, Y and condition_set: column indices of data.

G_sq: True means using G-Square test;

False means using Chi-Square test.


p: the p-value of the test.