[R] transparent colors
ligges at statistik.uni-dortmund.de
Wed Oct 10 18:54:42 CEST 2007
See ?rgb and its alpha argument, for example.
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,
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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