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| From | Partho Sarkar <partho.ss@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | st: Re: Extracting a submatrix based on multiple conditions |
| Date | Fri, 1 Jul 2011 19:58:55 +0530 |
Thank you very much, Nick.
Regards
P.Sarkar
Nick Cox
: select(y, (y[,2] :== 1 :& y[,3] :== 1))
1 2 3 4 5
+-----------------------------------------+
1 | 18049 1 1 91 2500 |
2 | 18079 1 1 124 2300 |
+-----------------------------------------+
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