SPSS 12：12.1.1 多元线性回归分析 - (2) 回归、回归分析；反向（反向消除）
结果12-9 Model Summary（模型摘要）
Model |
R |
R Square |
Adjusted R Square |
Std. Error of the Estimate |
1 |
0.895a |
0.801 |
0.780 |
6.70636 |
2 |
0.885b |
0.783 |
0.768 |
6.88491 |
a. Predictors: (Constant), x3 体重指数, x2 吸烟, x1 年龄
b. Predictors: (Constant), x2 吸烟, x1 年龄
结果12-10 ANOVAc（方差分析表）
Model |
Sum of Squares |
df |
Mean Square |
F |
Sig. |
|
1 |
Regression |
5,082.566 |
3 |
1,694.189 |
37.669 |
0.000 |
Residual |
1,259.309 |
28 |
44.975 |
|||
Total |
6,341.875 |
31 |
||||
2 |
Regression |
4,967.219 |
2 |
2,483.610 |
52.395 |
0.000 |
Residual |
1,374.656 |
29 |
47.402 |
|||
Total |
6,341.875 |
31 |
a. Predictors: (Constant), x3 体重指数, x2 吸烟, x1 年龄
b. Predictors: (Constant), x2 吸烟, x1 年龄
c. Dependent Variable: y 血压
结果12-11 Coefficientsa（回归系数）
Model |
Unstandardized Coefficients |
Standardized Coefficients |
||||
B |
Std. Error |
Beta |
t |
Sig. |
||
1 |
(Constant) |
45.724 |
9.746 |
4.692 |
0.000 |
|
x1 年龄 |
1.547 |
0.228 |
0.745 |
6.798 |
0.000 |
|
x2 吸烟 |
8.922 |
2.431 |
0.316 |
3.670 |
0.001 |
|
x3 体重指数 |
3.195 |
1.995 |
0.175 |
1.601 |
0.120 |
|
2 |
(Constant) |
44.293 |
9.963 |
4.446 |
0.000 |
|
x1 年龄 |
1.778 |
0.181 |
0.857 |
9.844 |
0.000 |
|
x2 吸烟 |
9.623 |
2.455 |
0.341 |
3.919 |
0.000 |
|
a. Dependent Variable: y 血压
上述操作还可通过如下命令执行：
REGRESSION
/MISSING LISTWISE
/STATISTICS COEFF OUTS R ANOVA
/CRITERIA=PIN(.05) POUT(.10)
/NOORIGIN
/DEPENDENT y
/METHOD=BACKWARD x1 x2 x3 .