Dear Tom,
Use "\\" before "+":

gsub("\\+","K","8.00+00")
[1] "8.00K00"

See ?regex.

HTH,

Jorge


On Thu, May 21, 2009 at 11:45 AM, Tom La Bone <booboo@gforcecable.com>wrote:

>
> I know this is easy, but I am stumped:
>
> > gsub("0","K","8.00+00")
> [1] "8.KK+KK"
>
> > gsub("+","K","8.00+00")
> Error in gsub("+", "K", "8.00+00") : invalid regular expression '+'
> In addition: Warning message:
> In gsub("+", "K", "8.00+00") :
>  regcomp error:  'Invalid preceding regular expression'
>
> I don't understand the error message. How do I go about replacing the "+"
> in
> the string "8.00+00" with another character?
>
> Tom
>
>
>
>
> --
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