> From: Mag. Ferri Leberl > > Dear everybody! > I am analysing data from an enquette. The answers are either > A or B. How can I > draw a histogram without transforming the data from > characters to numbers? If > the data are saved in a list M, hist(M[,1]) returns: > > Error in hist.default(M[, 1]) : `x' must be numeric > Execution halted
You can try: > hist.factor <- function(x, ...) barplot(table(x), ...) > f <- factor(sample(c("A", "B"), 50, replace=TRUE)) > hist(f) HTH, Andy > Thank you in advance! ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html