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3. classifier.fit(x_train y_train) # classifier.fit(x_train y_train)

X_train , X_test , y_train , y_test = train_test_split(X, y, test_size = 0.20, random_state = 33) Also, one recommendation is that if you are using scikit version >= 0.18, then change the package from cross_validation to model_selection , because its deprecated and will be removed in new versions

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