Computational Thinking, Python, Linear Algebra, Linear Regression, Jupyter Notebook.
coeffs_naive = ls_naive(trn_int, y_trn) regr_metrics(y_test, test_int @ coeffs_naive) (57.94102134545707, 48.053565198516438) Normal Equations (Cholesky) A = trn_int b = y_trn AtA = A.T @ A Atb = A.T @ b Warning: Numpy and Scipy default to different upper/lower for Cholesky R =