hi i'm francesco, i'am a new r user. I have a dataset with these variables
[1] "timestamp" "categoria" "lat" "long" "ammontare_euro" [6] "provincia" "risoluzione" and i want to make an analjsy on the data of variable 'categoria'. now the variable 'categoria' has 98 different variable c=levels(X[caregoria]) > length(c) [1] 98 how can i create a plot (eg. an histogram) for each the categoria's variable for the variable 'ammontare_euro'? yhank you fra -- View this message in context: http://r.789695.n4.nabble.com/how-to-assemble-data-of-the-same-variable-tp2548650p2548650.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.