Do you want to replace specific values of a data set? df <- sample(c(0,1,2),600,replace=T) table(df) df[df==2]<-1 table(df)
----- A R learner. -- View this message in context: http://r.789695.n4.nabble.com/how-to-collapse-categories-or-re-categorize-variables-tp2291704p2291727.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.