Message-ID: <CAOEXkoCGrjZ=jYOv6NtA1renUr=A4_xng+M+600V5-pkp2F2TA@mail.gmail.com>
Date: 2013-03-06T21:09:22Z
From: HJ YAN
Subject: How to combine conditional argument and logical argument in R to create subset of data...
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