Dear Jörg,
Try this:
> gsub('\\+',"",x)
[1] "F" "F"
Take a look at "Basic Regular Expressions" in ?regex.
HTH,
Jorge
On Sat, Feb 7, 2009 at 8:55 PM, Jörg Groß <[email protected]> wrote:
> Hi,
>
>
> can someone help me;
> I don't understand why this code doesn't do what it's supposed to do;
>
> x <- c("F+", "F+")
> x <- sub("F+", "F", x)
> x
>
> [1] "F+" "F+"
>
> (I want "F" "F")
>
>
>
>
> when I try this;
> x <- c("F+", "F+")
> x <- sub("+", "", x)
> x
>
> I get an error message ("invalid regular expression")
>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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