Hello, I have a vector of dates and I would like to grep the year component from this vector (= all digits after the last punctuation character)
dates <- c("28.7.08","28.7.2008","28/7/08", "28/7/2008", "28/07/2008", "28-07-2008", "28-07-08") the resulting vector should look like "08" "2008" "08" "2008" "2008" "2008" "08" I tried something like (Perl style) with no success grep("[[:punct:]]?\\d", dates, value=T, perl=T) Any ideas? -Lauri ______________________________________________ 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.