I am trying to create a plot that has multiple plot characters for each point (e.g. a point within a triangle, a triangle within a square, etc). The workaround I have found to do this is by plotting twice, as in this example:
x <- c(1.1, 2.3, 4.6) y <- c(2.0, 1.6, 3.2) plot(x, y) points(x,y, pch=20, col="red", cex=0.5) This works, but perhaps there is a better way to do it in one step? My main problem comes when I want to make a legend. The workaround I have here is to again plot twice, as in legend(x="bottomright", legend=c("Category 1"), text.col="white", title="Fairly long title", title.col="white", col=c("red"),pch=20, pt.cex=0.5, bty="o", bg="white") legend(x="bottomright", legend=c("Category 1"), title="Fairly long title", pch=1, bty="o") which produces the correct image in my Quartz window. I have to include the title and legend text in both versions, plotting the first one in white to avoid the text getting overplotted while still creating a legend border of the appropriate size. However, when I try to save this as a png, only the most recently plotted legend is captured. Saving as a pdf works, but the deliverable for this project is a png file and I would like to be able to produce them directly from R. Is there a way for me to capture both legends in a png? Or is there a better way for me to plot multiple symbols for a single point? Amelia McNamara ______________________________________________ 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.