data步：组合结果问题

shiyiming

各位，晚上好！
我碰上这样一个问题：用sas从1到10的10个数中选择5个数的所有的组合结果写出来。
我想了很久也弄不出来结果。很闷 <!-- s:( --><img src="{SMILIES_PATH}/icon_sad.gif" alt=":(" title="Sad" /><!-- s:( -->
请求各位！

shiyiming

从0到9？

shiyiming

就是说10个元素中取5个元素的组合的结果
比如说：
第一个观测：
1 2 3 4 5
接着
1 2 3 4 6
1 2 3 4 7
1 2 3 4 8
1 2 3 4 9
1 2 3 4 10
1 2 3 5 6
. . .

shiyiming

Clearly there are 252 combinations. The numbers should be distinct among columns each row but not concerning their positions. for example, 12345 same as 12354.

shiyiming

why not use PROC PLAN which is designed for this job

ods output Plan=Combinations;
proc plan;
      factors Block=252 ordered
              Treat= 5 of 10 comb;
run;

shiyiming

HEHE.I don't know. why not? Reason is I have never heard of that proc; that is also the reason why I am coming here. I am sure, there always is the person, like you, from whom I can learn a lot.

shiyiming

感谢各位！
虽然不是data步
但还是解决了

shiyiming

data步也很简单。楼上哥们给了个过程，我是由衷佩服。所以擦掉，不敢来献丑了。我是搞统计的，对过程很看重。掌握一个过程可以解决很多问题，做一个data coding 只是权宜之计啊。
真正是“崔颢提诗在上头”