I got this erro
Error in c("red", "blue", "green")[r] : invalid subscript type 'S4'-- View this message in context: http://r.789695.n4.nabble.com/How-to-represent-certain-values-in-a-file-as-we-want-tp4662925p4662935.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.
