[R] Logical "and"
matthew_wiener at merck.com
Thu Nov 11 14:39:24 CET 2004
a[!(a %in% b)] should do the trick.
setdiff could also probably be used.
Hope this helps,
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Alexander Sokol
Sent: Thursday, November 11, 2004 8:34 AM
To: r-help at stat.math.ethz.ch
Subject: [R] Logical "and"
I have the following very simple problem:
Say I have two vectors,
I would like to create a vector containing the elements in a which are not
Obviously, this is possible by writing
a[a!=b & a!=b & a!=b]
But I would like a solution which is applicable to the situation where the
number of elements in b is unknown.
I have looked in the R manuals, the FAQ and the mailing lists, but have been
unable to find a solution.
Thank you for your replies,
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