On 9/28/07, Duncan Murdoch <[EMAIL PROTECTED]> wrote: > > Can R plot graphs like the one at > > > > http://www.mathwords.com/f/f_assets/floor_graph.gif > > > > with the balls at the discontinuity points? > > You can use segments() to draw the segments and symbols() to draw the > balls. For example, > > plot(1,1,type='n', xlim=c(1,10), ylim=c(1,10)) > segments(1:9, 1:9, 2:10, 1:9) > symbols(2:10, 1:9, circles=rep(0.1,9), inches=FALSE, bg="white",add=T) > symbols(1:9, 1:9, circles=rep(0.1,9), inches=FALSE, bg="black",add=T) > > This depends on the order of drawing, because the white background of > the first circles obscures the ends of the segments.
Thanks, Jim and Duncan. It would help to have transparent backgrounds for the white balls. Paul ______________________________________________ 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.
