二次模型
对话框处选择“Quadratic”,运行后输出结果如下
Polynomial Regression Analysis: PULL F versus ROSUN D
The regression equation is
PULL F = - 597.5 + 1492 ROSUN D - 919.5 ROSUN D**2
S = 0.263348 R-Sq = 92.7% R-Sq(adj) = 90.6%
Analysis of Variance
Source DF SS MS F P
Regression 2 6.13853 3.06927 44.26 0.000
Error 7 0.48547 0.06935
Total 9 6.62400
Sequential Analysis of Variance
Source DF SS F P
Linear 1 5.17144 28.48 0.001
Quadratic 1 0.96709 13.94 0.007
二次项回归方程
1