Add perl = TRUE On Sat, Mar 14, 2009 at 5:42 AM, Daren Tan <darenta...@gmail.com> wrote: > I am cleaning up comma-limited values, so that only one comma > separates each value. Using the example below, as much as I try with > regex, I can't remove the last comma. I hope to have a one-liner > solution, if possible. > > gsub("^,*|,*$|(,)*", "\\1", ",,,apple,,orange,,,,,lemon,strawberry,,,,") > [1] "apple,orange,lemon,strawberry,"
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