Bug with the col option in plot function
On 21/03/2009 10:44 AM, heyi xiao wrote:
Thanks, David, utils::str(pdf.options()) returns exactly the same results as yours. The colormodel is set to rgb already. The reason I thought this is a bug is that the same plot function + col option works fine when pch=0 or other numbers, except for 1 or 16 (empty or solid circle) or any letter. Therefore, I have reason to believe that this is not something related to general plotting setting. And also I reproduced the same problem in different versions of R (both 2.4 and 2.8). Therefore, I don???t think this is a problem with my specific R version.
Have you tried viewing the pdf file in another viewer, e.g. Acrobat? Preview in MacOS 10.4 had a number of bugs in it; there are fewer in 10.5, I think. Duncan Murdoch
Heyi --- On Fri, 3/20/09, David Winsemius <dwinsemius at comcast.net> wrote: From: David Winsemius <dwinsemius at comcast.net> Subject: Re: [R] Bug with the col option in plot function To: xiaoheyiyh at yahoo.com Cc: "r-help at r-project.org Help" <r-help at r-project.org>, "R-SIG-Mac Mailing List" <r-sig-mac at stat.math.ethz.ch> Date: Friday, March 20, 2009, 7:45 PM Really belongs o R-SIG-Mac list and have copied it there. I cannot reproduce on my Mac. I get the same colors on the pdf file with that code as I do on the screen device. I have in in the past needed to set up a device before plotting: trellis.device(device="postscript", color = TRUE) ... but you are not using a trellis function or creating postscript. What does utils::str(pdf.options()) return? On mine I get this List of 15 $ width : num 7 $ height : num 7 $ onefile : logi TRUE $ family : chr "Helvetica" $ title : chr "R Graphics Output" $ fonts : NULL $ version : chr "1.4" $ paper : chr "special" $ encoding : chr "default" $ bg : chr "transparent" $ fg : chr "black" $ pointsize : num 12 $ pagecentre : logi TRUE $ colormodel : chr "rgb" $ useDingbats: logi TRUE Perhaps this could be a cure?: pdf.options(colormodel = "rgb") You probably ought to update as well before raising the bug-flag. --David Winsemius, MD Heritage Laboratories West Hartford, CT
sessionInfo()
R version 2.8.1 Patched (2009-01-19 r47650) i386-apple-darwin9.6.0 locale: en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] splines stats graphics grDevices utils datasets methods base other attached packages: [1] termstrc_1.1 Design_2.1-2 Hmisc_3.5-2 survival_2.34-1 loaded via a namespace (and not attached): [1] cluster_1.11.12 grid_2.8.1 lattice_0.17-20 tools_2.8.1 On Mar 20, 2009, at 6:47 PM, heyi xiao wrote:
I lose control on colors when I plot points with pch=1 or 16
(empty or solid circle) or any letter, say "A". For example:
x=runif(5)
y=runif(5)
pdf("plot.pdf")
plot(x, y,
type='p', pch=1, col = 1:5) #just black points
plot(x, y,
type='p', pch=0, col = 1:5) #points with different colors
dev.off()
This problem occurred for different versions of R under Mac
OS X 10.4. not sure whether this is true for other operating systems. I
used my
most basic settings of R without any special package loaded. Any
suggestions/ideas
would be appreciated.
sessionInfo()
R version 2.8.0 (2008-10-20) powerpc-apple-darwin8.11.1 locale: C attached base packages: [1] stats graphics grDevices utils datasets methods base
[[alternative HTML version deleted]]
------------------------------------------------------------------------
______________________________________________ R-help at 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.