At 15:46 15/05/2009, Liviu Andronic wrote:
Dear all,
I'm trying to gsub() "%" with "\%" with no obvious success.
Hello Liviu,
When I posted a similar question a few years ago one helpful response
introduced me to nchar
> nchar("%")
[1] 1
> nchar("\%")
[1] 1
Warning messages:
1: '\%' is an unrecognized escape in a character string
2: unrecognized escape removed from "\%"
> nchar("\\%")
[1] 2
>
Of course other people have already solved your specific problem but
nchar is a handy tool I find.
(And apologies to the person who helped me last time but I cannot
find the post in the archive for some reason and so am reluctant to
credit them in case I got it wrong)
> temp1 <- c("mean", "sd", "0%", "25%", "50%", "75%", "100%")
> temp1
[1] "mean" "sd" "0%" "25%" "50%" "75%" "100%"
> gsub("%", "\%", temp1, fixed=TRUE)
[1] "mean" "sd" "0%" "25%" "50%" "75%" "100%"
Warning messages:
1: '\%' is an unrecognized escape in a character string
2: unrecognized escape removed from "\%"
I am not quite sure on how to deal with this error message. I tried
the following
> gsub("%", "\\%", temp1, fixed=TRUE)
[1] "mean" "sd" "0\\%" "25\\%" "50\\%" "75\\%" "100\\%"
Could anyone suggest how to obtain output similar to:
[1] "mean" "sd" "0\%" "25\%" "50\%" "75\%" "100\%"
Thank you,
Liviu
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