Dear list: I would like to extract three letters from first and second elements in one column and make a new column.
For example below, > tempdf = read.table("clipboard", header=T, sep='\t') > tempdf name var1 var2 abb 1 Tom Cruiser 1 6 TomCru 2 Bread Pett 2 5 BrePet 3 Arnold Schwiezer 3 7 ArnSch > (p1 = substr(tempdf$name, 1, 3)) [1] "Tom" "Bre" "Arn" I was able to extract three letters from first name, however, I don't know how to extract three letters from last name (i.e., 'Cru', 'Pet', and 'Sch'). Can anyone give me a suggestion? Many thanks in advance. Best, Steve ______________________________________________ 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.