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import numpy as np
from sklearn.datasets import make_blobs
from sklearn.naive_bayes import GaussianNB
import decision_boundary


X, y = make_blobs(n_samples=1500, random_state=2)
classifier = GaussianNB()
decision_boundary.plot_boundary(classifier, X, y)

transformation = [[ 0.60834549, -0.63667341], [-0.40887718, 0.85253229]]
X, y = make_blobs(n_samples=1500, random_state=170)
X_aniso = np.dot(X, transformation)
decision_boundary.plot_boundary(classifier, X_aniso, y)

X_varied, y_varied = make_blobs(n_samples=1500,
                                cluster_std=[1.0, 2.5, 0.5],
                                random_state=170)
decision_boundary.plot_boundary(classifier, X_varied, y_varied)