Paul Smith <phh...@gmail.com> wrote > >Is there some way of drawing a boxplot, with R, when one does not have >the original continuous data, but only the data grouped in classes? >The function boxplot() can only deal with original data.
It's not clear how the data are, now. What are the classes? Are they numbers? Let's make something up. Is this what you have and want? y <- c(rep("0-10", 5), rep("11-20", 10), rep("21-30", 15)) y <- as.ordered(y) y <- as.numeric(y) y[y == 1] <- 5 y[y == 2] <- 15.5 y[y == 3] <- 25.5 boxplot(y) ? Peter Peter L. Flom, PhD Statistical Consultant Website: www DOT peterflomconsulting DOT com Writing; http://www.associatedcontent.com/user/582880/peter_flom.html Twitter: @peterflom ______________________________________________ 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.