Hi, On Thu, Mar 25, 2010 at 5:32 PM, Babaorumi <gildas.mazo.u...@gmail.com> wrote: > > Hi, > > I have a data set of points which are represented by 3 variables x,y,z where > x is the position of the point on the x-absciss and y on the y-absciss. Each > of my points has a value z, which I want to be displayed as follows: the > more z is high, the more the color on the map is dark.
How about just tweaking the alpha/transparency for each point as a function of its value. See this thread for inspiration: http://thread.gmane.org/gmane.comp.lang.r.general/158649 HTH, -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact ______________________________________________ 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.
