Message-ID: <Pine.GSO.4.05.10211081601160.17352-100000@engmail.uwaterloo.ca>
Date: 2002-11-08T21:05:35Z
From: Paul Boutros
Subject: Merging data.frames
Is it possible to combine two data-frames, just taking the rows where
these frames have equivalent names?
So for example I would want to take:
d1:
val1 val2
A 1 2
B 3 4
C 5 6
and d2:
val3 val4
A 1 4
C 2 5
D 3 6
to merge into:
val1 val2 val3 val4
A 1 2 1 4
C 5 6 2 5
Is this kind of "merge on equal rows" to create a subset of the two
data-frames possible in R, or would I need to move to an altnerate
lagnauge to do this?
Thanks for any ideas!
Paul
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