On 5 Dec 2011, at 15:58, R. Michael Weylandt wrote: > 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.
It does work. Might it be that my data is a matrix? I'm using it to give a name for each bar. > > What is your sessionInfo() and str(mydata)? Same problem in a fresh R > session (with --vanilla if necessary)? sessionInfo() R version 2.14.0 (2011-10-31) Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) locale: [1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8 attached base packages: [1] splines stats graphics grDevices utils datasets methods base other attached packages: [1] survival_2.36-10 loaded via a namespace (and not attached): [1] tools_2.14.0 str(mydata) num [1, 1:24] 2 108 0 0 0 1 3 0 0 0 ... - attr(*, "dimnames")=List of 2 ..$ : NULL ..$ : chr [1:24] "A" "B" "C" "D" ... Basically, using the 'x' object as you created the code works, and I can have a workaround. I fail to see why it would not work using mydata. Cheers F > > 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. -- 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.