Dear R users, I have a data frame with one column (4000 rows) containing name codes (factor with 63 levels). I would like to associate each name with a particular Type (coded as 1,2,3,4,H or H1) in a second column. Is it possible to do a lookup table of associations (i.e. A23 is of type 1, A13 is of type 3 ...) so as to fill up automatically the $Type column.
df() $Source $Type A23 A24 A9 A32 A25 A14 A10 A12 A11 A13 G Alternative solutions are also welcome. Thanks in advance P.S. I found a discussion mentioning match() and %in% but it does not seem adapted. -- Nikola Markov Inserm U 846 Stem cells and brain research institute 18 av Du Doyen Lepine 69500 Bron France ______________________________________________ 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.
