[R] string/character to number

From: Jake Michaelson <jjmichael_at_comcast.net>
Date: Thu 23 Jun 2005 - 07:35:07 EST

I did a very quick search of the archive and couldn't find a readily available answer to this one:

I'd like to convert, for example:

c("a", "b", "a", "b")


c(1, -1, 1, -1)

In the case of the first vector, it may be any length, but will always only have two unique values. It must always be replaced by corresponding values of 1 and -1.

Any thoughts?

Thanks in advance,


R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Jun 23 07:46:29 2005

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:32:57 EST