Statistics, Regression, Data Science, Machine Learning, AI.
X_test, y_train, y_test = train_test_split(X, y, test_size = .3, # 30% of data for testing shuffle = True, # Shuffling values random_state = 42) We are also going to add a constant to the X dataframes. This is basically the first column of 1ₛ we have seen before, used for the intercept, which is