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[S] combinations

To: "S-NEWS" <s-news@utstat.toronto.edu>
Subject: [S] combinations
From: "Ed Callahan" <callahan@envstat.com>
Date: Sat, 25 Apr 1998 13:53:32 -0500
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I need a function that returns a matrix of all the combinations of size k
from n items.  So with n=4 and k=2 I would want

1 2
1 3
1 4
2 3
2 4
3 4

Does anyone know how to achieve this in S-Plus 4.0?

Thanks
Ed


----------------------------------
  Edward Callahan
  Environmental Statistics

  callahan@envstat.com
  http://www.envstat.com
----------------------------------

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