d******r 发帖数: 16947 | 1 Hi, I have a data set which has records as follows:
1110 A 2 2008/10/2
1110 A 2 2008/10/15
1112 B 1 2008/11/01
1112 B 1 2008/11/03
......
first 3 fields are same group:
I want creat a single observation like
1110 A 2 2008/10/2 2008/10/15
1112 B 1 2008/11/01 2008/11/03
to reduce records number in the table.
How I can do that?
Thanks a lot... | n*********t 发帖数: 64 | 2 proc transpose
【在 d******r 的大作中提到】 : Hi, I have a data set which has records as follows: : 1110 A 2 2008/10/2 : 1110 A 2 2008/10/15 : 1112 B 1 2008/11/01 : 1112 B 1 2008/11/03 : ...... : first 3 fields are same group: : I want creat a single observation like : 1110 A 2 2008/10/2 2008/10/15 : 1112 B 1 2008/11/01 2008/11/03
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