> (id <- with(df, id[match(v,Name)])) [1] 1 2 2 4 2 4 2 2 4 2 1 2 2 1 2 2 1 2 2
________________________________________ From: r-help-boun...@r-project.org [r-help-boun...@r-project.org] On Behalf Of Nathan S. Watson-Haigh [nathan.watson-ha...@csiro.au] Sent: 27 January 2010 10:31 To: r-help@r-project.org Subject: [ExternalEmail] [R] Bulk Match/Replace This must be easy to do..... I have a vector and a lookup data.frame: > v [1] "5" "234" "234" "42-43" "234" "42-43" "234" "234" "42-43" "234" "5" "234" "234" "5" "234" "234" "5" "234" "234" > df id Name 1 5 12-13 2 2 234 3 4 42-43 4 1 5 How can I simply substitute the values in vector v with the corresponding id value from lookup table df? I'd expect the following output: > v [1] "1" "2" "2" "4" "2" "4" "2" "2" "4" "2" "1" "2" "2" "1" "2" "2" "1" "2" "2" Cheers, Nathan -- -------------------------------------------------------- Dr. Nathan S. Watson-Haigh OCE Post Doctoral Fellow CSIRO Livestock Industries University Drive Townsville, QLD 4810 Australia Tel: +61 (0)7 4753 8548 Fax: +61 (0)7 4753 8600 Web: http://www.csiro.au/people/Nathan.Watson-Haigh.html ______________________________________________ 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. ______________________________________________ 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.
