R help - Jun 2005 - trim a string

How to trim the leading and trailing white space off of a string?

 If the variable is "  E              " I need to convert it to
"E".

http://finzi.psych.upenn.edu/R/Rhelp02a/archive/14493.html

Andy
> From: Omar Lakkis
> 
> How to trim the leading and trailing white space off of a string?
> 
>  If the variable is "  E              " I need to convert it to
"E".
> 
> ______________________________________________
> R-help at 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
> 
> 
>

RSiteSearch("trim") will give you a lot of answers.  You cal also use
the
higher level function trim{R.oo} i.e.:

library(R.oo)
x="    e  "
trim(x)
[1] "e"

>From: Omar Lakkis <uofiowa at gmail.com>
>Reply-To: Omar Lakkis <uofiowa at gmail.com>
>To: r-help at stat.math.ethz.ch
>Subject: [R] trim a string
>Date: Fri, 17 Jun 2005 13:34:36 -0400
>
>How to trim the leading and trailing white space off of a string?
>
>  If the variable is "  E              " I need to convert it to
"E".
>
>______________________________________________
>R-help at 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

> How to trim the leading and trailing white space off of a string?
> 
>  If the variable is "  E              " I need to convert it to
"E".
gsub('^[[:space:]]+', '', "   E     ")
gsub('[[:space:]]+$', '', "   E     ")

as in R-2.1.0/library/base/html/grep.html