x <- c(2L, 108L, 0L, 0L, 0L, 1L, 3L, 0L, 0L, 0L, 0L, 0L, 7L, 18L, 3L, 4L, 8L, 20L, 26L, 20L, 19L, 7L, 1L, 1L) mycol = c(rep('yellow', 2), rep('white', 3), rep('orange',2), rep('white', 5), rep('orange',3), rep('red',9)) barplot(x, col = mycol)
Produces a multi-colored barplot on my machine so I understand your confusion. Does the above work for you? It may be something hidden in your data. What is your sessionInfo() and str(mydata)? Same problem in a fresh R session (with --vanilla if necessary)? Michael On Mon, Dec 5, 2011 at 10:44 AM, Federico Calboli <f.calb...@imperial.ac.uk> wrote: > Hi All, > > I'm having a problem with barplot: > > mydata > [1,] 2 108 0 0 0 1 3 0 0 0 0 0 7 18 3 4 8 20 26 20 19 7 1 1 > > mycol = c(rep('yellow', 2), rep('white', 3), rep('orange',2), rep('white', > 5), rep('orange',3), rep('red',9)) > > barplot(mydata, col = mycol) > > gives me an uniformly yellow barplot. How do I solve this? > > bw > > Federico > > > > -- > Federico C. F. Calboli > Neuroepidemiology and Ageing Research > Imperial College, St. Mary's Campus > Norfolk Place, London W2 1PG > > Tel +44 (0)20 75941602 Fax +44 (0)20 75943193 > > f.calboli [.a.t] imperial.ac.uk > f.calboli [.a.t] gmail.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. ______________________________________________ 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.