Python, Data, Data Science, Regression, Machine Learning.
data into training and testing sets: from sklearn.model_selection import train_test_split # Split the California dataset into training and testing sets X_train_cali, X_test_cali, y_train_cali, y_test_cali = train_test_split( X_california, y_california, test_size=0.2, random_state=42) # Split the