Dave,
This is the command:
match(y,x)
Dimitrios Chalvatzis
Risk Analyst
Energy Wholesale/Risk Policies & Methods
T +44 (0)24 7642 5429
F +44 (0)24 7642 5479
Dimitrios.Chalvatzis@eon-uk.com
-----Original Message-----
From: s-news-owner@lists.biostat.wustl.edu
[mailto:s-news-owner@lists.biostat.wustl.edu] On Behalf Of Dave Evens
Sent: Monday, August 22, 2005 1:28 PM
To: s-news@lists.biostat.wustl.edu
Subject: [S] comparing character vectors
Dear all,
I would like to compare to 2 character vectors, where
one is a subset of the other. For example, suppose
x <- LETTERS[1:20]
and
y <- c("E", "H", "N", "Q", "R")
I would like to know where the elements of y occur in
x, i.e. in this example
5 8 14 17 18
Is there a command that does this?
Thanks in advance for any help.
Dave
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