> Given a data frame with a continuous variable and a factor. I would like to > generate a histogram of the continuous variable, where each bar is filled > with different colors according to the percentage of factor values falling > into this region of the continuous variable.
How exactly do you want the bar coloured? I can see that this might possibly work if the factor has only two levels, but how is a colour supposed to encode the a categorical distribution? Or do you mean: dataset <- data.frame(x = c(rnorm(100), runif(100), rchisq(100, 1)), y = gl(3, 100, labels = LETTERS[1:3])) ggplot(dataset, aes(x = x, fill = y)) + geom_histogram(position = "fill") Hadley -- http://had.co.nz/ ______________________________________________ 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.
