On Jan 21, 2012, at 23:04 , Sarah Goslee wrote:
> + is a metacharacter, and must be escaped:
>
>> X <- "one + two"
>> gsub("\\+", "plus", X)
> [1] "one plus two"
>
> The help for gsub() tells you to read ?regexp - that's where
> the details of regular expressions as implemented in R are
> explained.
>
...and it also tells you about the 'fixed' argument:
> X <- "one + two"
> gsub("+", "plus", X, fixed=TRUE)
[1] "one plus two"
-pd
--
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd....@cbs.dk Priv: pda...@gmail.com
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