有如下回归:
data twox;
input x1 x2 y;
datalines;
16.0 5.8 29.0
15.5 5.5 25.0
14.1 5.3 27.5
13.1 4.8 20.0
12.5 4.7 20.0
12.0 4.3 17.5
11.8 3.6 15.0
13.8 5.0 22.5
15.3 5.6 27.5
14.0 5.1 24.0
;
proc reg;
model y= x1 x2;
plot y*x1/symbol='';
plot y*x2/symbol='';
run;
quit;
回归结果是:
SAS 系统 2010年10月29日 星期五 上午10时46分25秒 4
The REG Procedure
Model: MODEL1
Dependent Variable: y
Number of Observations Read 10
Number of Observations Used 10
Analysis of Variance
Sum of Mean
Source DF Squares Square F Value Pr > F
Model 2 179.17902 89.58951 43.49 0.0001
Error 7 14.42098 2.06014
Corrected Total 9 193.60000
Root MSE 1.43532 R-Square 0.9255
Dependent Mean 22.80000 Adj R-Sq 0.9042
Coeff Var 6.29526
Parameter Estimates
Parameter Standard
Variable DF Estimate Error t Value Pr > |t|
Intercept 1 -12.81592 4.83961 -2.65 0.0330
x1 1 0.61838 0.94114 0.66 0.5321
x2 1 5.44791 2.10036 2.59 0.0357
请问怎么编程才能在回归系数上打上1% 5% 10%的显著性星号*** ** *,并且在系数下用括号标注t值,请高人指点,谢谢谢谢!!!!!!!!!!