See ?rgb and the article by Paul Murrell in R-news 2004-2. (The details of where it is supported have changed in the last three years, though.)
On Wed, 10 Oct 2007, Markus Loecher wrote: > Dear R graphics experts, > Do you know of any way of plotting semi-transparent points in R ? > I face this problem any time I want to e.g. plot thousands of points > that belong to two or three classes which I color code. > With the default opaque colors, the plotting order matters and > basically the points I plot last completely dominate the picture. I > would much rather have the overlaying points mix in color.. > > Thanks a lot, > Markus -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ 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.
