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X = np.array(X, order="F")
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import catboost as cb
from sklearn.datasets import make_regression
X, Y = make_regression(n_samples=500_000, n_features=100)
reg = cb.CatBoostRegressor(max_depth=6, n_estimators=10, learning_rate=0.1)
%timeit -r1 -n1 reg.fit(X, Y)
X = np.array(X, order="F")
%timeit -r1 -n1 reg.fit(X, Y)
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