On Tue, Mar 18, 2014 at 12:43 PM, Dustin Fife <fife.dus...@gmail.com> wrote:
> I've got a dataset with really long column names (e.g.,
> CYJ.OSU.OAV.UJC.BUT.RDI). What I'd like to do is replace the fourth period
> with a break ("\n") so that when it plots, it will not run off the page.
> Here's what I've got so far:
>
> #### create fake names function
> fake.names = function(x){
> paste0(LETTERS[sample(1:26,3)], collapse="")
> }
> #### create the fake names
> fake = paste0(unlist(lapply(1:6, fake.names)), collapse=".")
>
>
Backreferences
cat(
gsub("(([[:alnum:]]+\\.){3})([[:alnum:]]+)\\.",
"\\1\\2\n",
fake
)
)
That is, match three word/period sequences, match a word, match a period,
and output the first two things.
-thomas
--
Thomas Lumley
Professor of Biostatistics
University of Auckland
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