An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20080910/4fc9aad1/attachment.pl>
ggplot2: edge outlines on points
2 messages · Adam Marsh, Hadley Wickham
Hi Adam, The next version of ggplot2 supports the build-in R plotting symbols that have different fills and borders, so you can do something like: geom_point(aes(colour=TRT), fill="red", colour="black", shape=21) Otherwise in the current version you can do: ggplot(data.frame(x = runif(20), y = runif(20)), aes(x, y)) + geom_point(size = 3, colour = "black") + geom_point(size = 2, colour = "red") The key difference to your code is that it's all on one plot, and I'm manually setting the colours, rather than to using scales. I also just used a smaller point rather than the matching hollow glyph, which makes things a little easier (and reverses the orders of the colours). Hadley
On Wed, Sep 10, 2008 at 9:37 AM, Adam Marsh <amarsh at udel.edu> wrote:
The graphic design elements in ggplot2 are so well done for color
graphics. Thank you! For BW publication graphs, there are a few
options I would like to be able to tweak, but can't seem to find the
grob handles necessary OR the right plotting strategy. Here's one
problem I've been puzzling over:
Q> How do you plot points with a grey fill and a black outline around
the edge?
I haven't been able to find the MatLab equivalent of
"MarkerEdgeColor" so
I've been working on trying to overlay two plots of the same points,
one plotted with fills and the other plotted with edge outlines (here
is my conceptual code):
pfill <- ggplot(data=DF, aes(x=X, y=Y)) +
geom_point(aes(colour=TRT),size=4) +
scale_colour_grey(end=0.8) +
theme_bw
pedge <- ggplot(data=DF, aes(x=X, y=Y)) +
geom_point(aes(colour=TRT),size=4) +
scale_colour_grey(end=0.8) +
scale_shape(solid=FALSE) +
theme_bw
However, I can't figure out the correct syntax, if this is even the
right way to go about it. Any suggestions as to the best approach to
achieve filled points with an edge outline would be greatly appreciated.
---------------------------------------------------
Adam G. Marsh, Ph.D.
Associate Professor
Marine Biological Sciences
University of Delaware
Lewes, DE 19958
302.645.4367
------------------------------------------------
[[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.