j*****i
发帖数: 47 | 1 请问：SAS如何生成这三个DATA SETS: test1, test2, test3?
能给详细解释一下处理的过程吗？
谢谢。
DATA x;
INPUT x1 x2 x3 x4;
CARDS;
1 0 0 0
1 0 0 0
1 0 0 0
1 0 0 0
0 1 0 0
0 1 0 0
0 1 0 0
0 1 0 0
0 0 1 1
0 0 1 1
0 0 1 1
0 0 1 1
0 0 0 1
0 0 0 1
0 0 0 1
0 0 0 1
;
RUN;
DATA avg;
INPUT avgnum;
CARDS;
3
;
RUN;
DATA test1;
SET avg;
SET x;
RUN;
PROC PRINT;
RUN;
DATA test2;
SET avg x; |
