[R] Splitting a character vector.
jrkrideau at inbox.com
Sun Jul 8 00:03:24 CEST 2012
It works perfectly so far on the test and real data.
The annoying thing is that I had tried , or thought I'd tried the open.par format and keep getting an error.
It looks like I had failed to add the '''', in the term. What is it doing?
Kingston ON Canada
> -----Original Message-----
> From: ruipbarradas at sapo.pt
> Sent: Sat, 07 Jul 2012 22:55:41 +0100
> To: jrkrideau at inbox.com
> Subject: Re: [R] Splitting a character vector.
> Try the following.
> open.par <- " \\(" # with a blank before '('
> close.par <- "\\)"
> result <- strsplit(sub(close.par, "", dd1), open.par)
> Why the two '\\'? Because '(' is a meta-character so it must be escaped.
> But '\' is a meta character so it must also be escaped.
> Then choose the right way to separate the two, maybe something like
> ix <- rep(c(TRUE, FALSE), length(result))
> Hope this helps,
> Rui Barradas
> Em 07-07-2012 22:37, John Kane escreveu:
>> I am lousy at simple regex and I have not found a solution to a simple
>> I have a vector with some character values that I want to split.
>> Sample data
>> dd1 <- c( "XXY (mat harry)","XXY (jim bob)", "CAMP (joe blow)", "ALP
>> (max jack)")
>> Desired result
>> dd2 <- data.frame( xx = c("XXY", "XXY", "CAMP", "ALP"), yy = c("mat
>> harry", "jim bob" , "joe blow", "max jack"))
>> I thought I should be able to split the characters with strsplit but
>> either I am misunderstanding the function or don't know how to escape a
>> "(" properly in an effort to at least get "XXY" "(mat harry)"
>> Any pointers would be appreciated
>> John Kane
>> Kingston ON Canada
>> FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on
>> your desktop!
>> R-help at r-project.org mailing list
>> PLEASE do read the posting guide
>> and provide commented, minimal, self-contained, reproducible code.
FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your desktop!
More information about the R-help