o******6
发帖数: 538 | 1 ☆─────────────────────────────────────☆
careerchange (Stupid) 于 (Tue Feb 17 15:06:39 2009) 提到:
In the following, I used proc sql twice. They look very
similar, except the first asks for treatment time mean, and the
second asks treatment time median. But the result is 2 rows
for the 1st sql and 6 rows for the 2nd sql. Anybody knows
why?
How to get 2 rows from 2nd sql? Thanks a lot.
data source_data;
input treatment time;
datalines;
0 124
0 234
0 23
1 34
1 46
1 44
;
run;
proc sql;
|
|
