请问高手,我对一定量资料进行两两比较后,为什么会出现两个两两比较结果,谢谢!
proc rank data=aaa out=b6;var fe;ranks rfe;run;
proc anova data=b6;class age_group1;model fe=age_group1;means age_group1/cldiff t;run;
SAS 系统 2013年05月24日 星期五 上午12时32分09秒 22
The ANOVA Procedure
Class Level Information
Class Levels Values
age_group1 8 0 1 2 3 4 5 6 >6
Number of Observations Read 19270
Number of Observations Used 19270
SAS 系统 2013年05月24日 星期五 上午12时32分09秒 23
The ANOVA Procedure
Dependent Variable: Fe
Sum of
Source DF Squares Mean Square F Value Pr > F
Model 7 6.287328 0.898190 2.53 0.0133
Error 19262 6833.746202 0.354779
Corrected Total 19269 6840.033530
R-Square Coeff Var Root MSE Fe Mean
0.000919 7.816584 0.595633 7.620118
Source DF Anova SS Mean Square F Value Pr > F
age_group1 7 6.28732840 0.89818977 2.53 0.0133
SAS 系统 2013年05月24日 星期五 上午12时32分09秒 24
The ANOVA Procedure
t Tests (LSD) for Fe
NOTE: This test controls the Type I comparisonwise error rate, not the experimentwise error rate.
Alpha 0.05
Error Degrees of Freedom 19262
Error Mean Square 0.354779
Critical Value of t 1.96009
Comparisons significant at the 0.05 level are indicated by ***.
Difference
age_group1 Between 95% Confidence
Comparison Means Limits
1 - >6 0.00034 -0.02788 0.02855
1 - 5 0.00101 -0.04154 0.04357
1 - 2 0.00151 -0.03084 0.03386
1 - 6 0.03021 -0.00949 0.06992
1 - 0 0.03556 0.01137 0.05976 ***
1 - 4 0.03580 -0.00602 0.07761
1 - 3 0.04433 0.00772 0.08095 ***
>6 - 1 -0.00034 -0.02855 0.02788
>6 - 5 0.00067 -0.04285 0.04420
>6 - 2 0.00117 -0.03244 0.03479
>6 - 6 0.02987 -0.01087 0.07062
>6 - 0 0.03523 0.00936 0.06109 ***
>6 - 4 0.03546 -0.00734 0.07826
>6 - 3 0.04400 0.00626 0.08173 ***
5 - 1 -0.00101 -0.04357 0.04154
5 - >6 -0.00067 -0.04420 0.04285
5 - 2 0.00050 -0.04581 0.04681
5 - 6 0.02920 -0.02252 0.08092
5 - 0 0.03455 -0.00648 0.07559
5 - 4 0.03479 -0.01857 0.08815
5 - 3 0.04332 -0.00606 0.09271
2 - 1 -0.00151 -0.03386 0.03084
2 - >6 -0.00117 -0.03479 0.03244
2 - 5 -0.00050 -0.04681 0.04581
2 - 6 0.02870 -0.01501 0.07241
2 - 0 0.03405 0.00374 0.06437 ***
2 - 4 0.03429 -0.01134 0.07992
2 - 3 0.04282 0.00191 0.08374 ***
6 - 1 -0.03021 -0.06992 0.00949
6 - >6 -0.02987 -0.07062 0.01087
6 - 5 -0.02920 -0.08092 0.02252
6 - 2 -0.02870 -0.07241 0.01501
6 - 0 0.00535 -0.03272 0.04342
6 - 4 0.00559 -0.04553 0.05670
6 - 3 0.01412 -0.03283 0.06107
0 - 1 -0.03556 -0.05976 -0.01137 ***
0 - >6 -0.03523 -0.06109 -0.00936 ***
0 - 5 -0.03455 -0.07559 0.00648
0 - 2 -0.03405 -0.06437 -0.00374 ***
0 - 6 -0.00535 -0.04342 0.03272
0 - 4 0.00024 -0.04003 0.04050
0 - 3 0.00877 -0.02606 0.04360
4 - 1 -0.03580 -0.07761 0.00602
4 - >6 -0.03546 -0.07826 0.00734
4 - 5 -0.03479 -0.08815 0.01857
SAS 系统 2013年05月24日 星期五 上午12时32分09秒 25
The ANOVA Procedure
t Tests (LSD) for Fe
Comparisons significant at the 0.05 level are indicated by ***.
Difference
age_group1 Between 95% Confidence
Comparison Means Limits
4 - 2 -0.03429 -0.07992 0.01134
4 - 6 -0.00559 -0.05670 0.04553
4 - 0 -0.00024 -0.04050 0.04003
4 - 3 0.00854 -0.04021 0.05728
3 - 1 -0.04433 -0.08095 -0.00772 ***
3 - >6 -0.04400 -0.08173 -0.00626 ***
3 - 5 -0.04332 -0.09271 0.00606
3 - 2 -0.04282 -0.08374 -0.00191 ***
3 - 6 -0.01412 -0.06107 0.03283
3 - 0 -0.00877 -0.04360 0.02606
3 - 4 -0.00854 -0.05728 0.04021