Dear R gurus,
If I got a vector with string characters like "abcd_efgh_12ab3_dfsfd", how could I extract "12ab3", which is the characters after second underscore and before the third underscore? Tons of thanks yan ********************************************************************** This email and any files transmitted with it are confide...{{dropped:10}} ______________________________________________ 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.