Hi Tom,
You could try:
library(stringr)
str_extract(x, perl("(?<=[A-Za-z]{4}/).*(?=/[0-9])"))
#[1] "S01-012"
A.K.On Friday, August 15, 2014 12:20 PM, Tom Wright <t...@maladmin.com> wrote: Hi, Can anyone please assist. given the string > x<-"/mnt/AO/AO Data/S01-012/120824/" I would like to extract "S01-012" require(stringr) > str_match(x,"\\/mnt\\/AO\\/AO Data\\/(.+)\\/+") > str_match(x,"\\/mnt\\/AO\\/AO Data\\/(\\w+)\\/+") both nearly work. I expected I would use something like: > str_match(x,"\\/mnt\\/AO\\/AO Data\\/([\\w -]+)\\/+") but I don't seem able to get the square bracket grouping to work correctly. Can someone please show me where I am going wrong? Thanks, Tom ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
