On 24-02-2012, at 12:48, syrvn wrote: > Hello, > > from a vector of strings I want to delete everything after the _ > >> v <- c("AAA_BB", "FF_MM") >> gsub("_*", "", v) > [1] "AAABB" "FFMM" > > > but should be > [1] "AAA" "FF" > > > Why does * not work? Even perl=TRUE does not give me the right result > gsub("_.*$", "", v) Berend