y_predict=lin_reg.predict(X_test) # 衡量線性回歸的MSE 、 RMSE、 MAE mse=np.sum((y_test-y_predict)**2)/len(y_test) rmse=sqrt(mse) mae=np.sum(np.absolute(y_test-y_predict))/len(y_test) r2=1-mse/np.var(y_test) print("mse:",mse," rmse:",rmse," mae:",mae," r2:",r2) 相關公式 MSE RMSE MAE R2 以上這篇python之MSE、MAE、RMSE...
www.dbjr.com.cn/article/1811...htm 2025-5-19