公式

$R^2=\frac{\text{ESS}}{\text{TSS}}=\frac{{\displaystyle \sum _{i=1}^n{\left({\stackrel{n}{y}}_i-\overline{y}\right)}^2}}{{\displaystyle \sum _{i=1}^n{\left(y_i-\overline{y}\right)}^2}}=1-\frac{{\displaystyle \sum _{i=1}^n{\left(y_i-\stackrel{n}{y}\right)}^2}}{{\displaystyle \sum _{i=1}^n{\left({\stackrel{n}{y}}_i-\overline{y}\right)}^2}}$

$F=\frac{\text{ESS}/1}{\text{RSS}/n-2}$

直线编号

L1

L2

L3

L4

R² (判定系数)

0.613

0.513

0.504

0.651

F (检验统计量)

630.145

440.774

480.234

820.530

Fɑ (临界值)

1.9658

1.9657

1.965

1.9654