I you want a more advanced example, you may want to have a look at this US election map: http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=113 (source code here: http://www.ai.rug.nl/~hedderik/R/US2004/ ) Mayeul
_____________________________________________________ Dr. Mayeul KAUFFMANN, Conflict Specialist European Commission, Joint Research Centre (JRC) Institute for the Protection and Security of the Citizen (IPSC) Global Security and Crisis Management - ISFEREA Via E. Fermi 2749 - I-21027 Ispra (VA), ITALY Phone: (+39) 033278 5071 http://isferea.jrc.ec.europa.eu/Staff/Pages/Kauffmann-Mayeul.aspx (Office: building 48c, 1st floor, room 123. TP: 483) -----Original Message----- From: r-sig-geo-boun...@stat.math.ethz.ch [mailto:r-sig-geo-boun...@stat.math.ethz.ch] On Behalf Of Robert J. Hijmans Sent: Monday, August 23, 2010 6:25 PM To: Thiago Veloso Cc: r-sig-geo@stat.math.ethz.ch Subject: Re: [R-sig-Geo] Mapping multiple attributes at once Dear Thiago, If you are using (basic) 'plot' you can pass a vector with the required sizes, i.e. your variable, perhaps after a transformation, as cex argument. Same approach works for col. plot(1:10, cex=c(1:5,1:5), col=rep(c('red', 'blue'), each=5), pch=20) Robert On Mon, Aug 23, 2010 at 7:26 AM, Thiago Veloso <thi_vel...@yahoo.com.br> wrote: > Dear SIG colleagues, > In my present study I need to plot a map containing two different attributes of some localities. I figured out that a convenient and didactic way would be via something like bubble plots. For example, the size of the circle would be proportional to a certain range of values (4 categories) and its inner colors (also 4 categories) would be proportional to the p-values of a statistical test. > Is it possible to implement that idea using SIG tools in R? Any suggestions on how to do it?? > Thanks in advance and best wishes, > Thiago. > > > > [[alternative HTML version deleted]] > > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo