rrwang05

您好，练习5中的多项式特征大于2的时候，执行报错 X_poly, Xval_poly, Xtest_poly = prepare_poly_data(X, Xval, Xtest, power=8) plot_learning_curve(X_poly, y, Xval_poly, yval, l=0) > linear_regression_np(X[:i, :], y[:i], l=1) > res = opt.minimize(fun=regularized_cost, x0=theta, args=(X, y, l), method='TNC', jac=regularized_gradient, options={'disp':...