Generalized Independence Noise (GIN) condition-based method
Algorithm Introduction
Learning the structure of Linear, Non-Gaussian LAtent variable Model (LiNLAM) based the GIN [1] condition.
Usage
from causallearn.search.HiddenCausal.GIN.GIN import GIN
G, K = GIN(data)
# Visualization using pydot
from causallearn.utils.GraphUtils import GraphUtils
import matplotlib.image as mpimg
import matplotlib.pyplot as plt
import io
pyd = GraphUtils.to_pydot(G)
tmp_png = pyd.create_png(f="png")
fp = io.BytesIO(tmp_png)
img = mpimg.imread(fp, format='png')
plt.axis('off')
plt.imshow(img)
plt.show()
Visualization using pydot is recommended (usage example). If specific label names are needed, please refer to this usage example (e.g., GraphUtils.to_pydot(G, labels=[“A”, “B”, “C”]).
Parameters
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.
Returns
G: GeneralGraph. Causal graph.
K: list. Causal Order.