search for: pfe1020k13

Hi, I'm trying to figure out how to use capturing parenthesis in regular expressions in R. (Doing this in Perl, Java, etc. is fairly trivial, but I can't seem to find the functionality in R.) For example, given the string: "10 Nov 13.00 (PFE1020K13)" I want to capture the first to digits and then the month abreviation. In perl, this would be /^(\d\d)\s(\w\w\w)\s/ Then I have the variables $1 and $1 assigned to the capturing parenthesis. I've found the grep and sub commands in R, but the docs don't indicate any way to captur...