dfr <- data.frame(txt= c("abab","ghghg","ththt","dfdfdf"), yvar=1:4)ind <- substr(dfr$txt,1,2) dfr[ind == "ab",] greetings, Remko -- View this message in context: http://r.789695.n4.nabble.com/Searching-for-the-first-two-characters-of-a-string-tp4089862p4090042.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
