On Tue, 4 Sep 2018, Paul Murrell wrote:
Another option is to just rasterize the points (but leave the rest of the plot vector). See ... https://www.stat.auckland.ac.nz/~paul/Reports/rasterize/rasterize.html
Paul, Thanks very much for the suggestion and URL. Regards, Rich ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.