R平方和计算方法

x y真值y 估值残平方和总平方和回归平方和

0.1232 2.9004668490.8108405464

0.233 3.21958290.048216651

0.3454 3.9322580250.0045889750

0.4455 4.8633170250.0186822361

0.5456 6.0839960250.0070553324

40.889383739109.110616261

x y真值y 估值残平方和总平方和回归平方和

0.1232 2.0134707790.0001814624

0.233 2.963906860.0013027151

0.3454 4.0304231850.000925570

0.4455 4.995741785 1.81324E-051

0.5456 5.996328385 1.34808E-054

40.000488272109.999511728

R平方

0.911061626 R平方

0.999951173