[R] Splitting a character vector.

[Rui Barradas]

Oh, right!

The close parenthesis isn't doing nothing in the result, t could be done 
after but since we're to it...

Rui Barradas

Em 07-07-2012 23:10, Mark Leeds escreveu:
> Hi Rui: I think he's asking about your replacement with blanks.
>
>
> On Sat, Jul 7, 2012 at 6:08 PM, Rui Barradas <ruipbarradas at sapo.pt
> <mailto:ruipbarradas at sapo.pt>> wrote:
>
>     Hello,
>
>     Sorry, but I don't understand, you're asking about 4 single quotes,
>     the double quotes in open.par are just opening and closing the
>     pattern, a character string.
>
>     Rui Barradas
>
>     Em 07-07-2012 23:03, John Kane escreveu:
>
>         Thanks Rui
>         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?
>
>
>
>         John Kane
>         Kingston ON Canada
>
>
>             -----Original Message-----
>             From: ruipbarradas at sapo.pt <mailto:ruipbarradas at sapo.pt>
>             Sent: Sat, 07 Jul 2012 22:55:41 +0100
>             To: jrkrideau at inbox.com <mailto:jrkrideau at inbox.com>
>             Subject: Re: [R] Splitting a character vector.
>
>             Hello,
>
>             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))
>             unlist(result)[ix]
>             unlist(result)[!ix]
>
>
>             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
>                 problem.
>
>                 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
>                 Thanks
>                 John Kane
>                 Kingston ON Canada
>
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