| To: | s-news@wubios.wustl.edu |
|---|---|
| Subject: | group by |
| From: | "Neung-Hwan Oh" <ultisol@gmail.com> |
| Date: | Wed, 14 Mar 2007 16:48:56 -0400 |
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Hello,
How can you calculate the following example in s-plus? In Access, it is relatively easy with "Group By" and I am wondering whether there is a similar function that I missed in S-Plus.
"From this table" site.no date time value 1 1989/04/27 12:00 1.0 2 1975/10/01 19:00 2.0 2 1975/10/01 20:00 4.0 3 1993/04/10 09:00 3.0 3 1993/04/10 12:00 6.0 3 1993/04/10 15:00 9.0
"To this (averages per date per site)" + (count column?) 1 1989/04/27 12:00 1.0 (1.0) 2 1975/10/01 19:30 3.0 (2.0) 3 1993/04/10 12:00 6.0 (3.0)
Many thanks! NH |
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