R pch plotting in illustator as “q”
问题 Every time I use pch=21 for plotting in R with lattice, my plot plots normally in the R plotting window and in pdf (circles with borders); however when I open a saved pdf version of my plot in Adobe Illustrator or Inkscape, the dots are oddly converted to "q"'s. Can anyone explain this? It's pretty frustrating, as I would like to edit my plot in either Illustrator or Inkscape. 回答1: I think you might want to use: useDingbats = FALSE as in: pdf("myplot.pdf", useDingbats=FALSE) plot() dev.off()