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Post #3061 630
Что выведет код?

from sklearn.model_selection import train_test_split

X = [1, 2, 3, 4, 5]
y = [10, 20, 30, 40, 50]

X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.4, random_state=1)

print(len(X_test))
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