Hi On 11 Mar 2003 at 16:28, Don Armstrong wrote:
> On Tue, 11 Mar 2003, Marc Schwartz wrote: > > Finally, you might also consider using the 'cex' argument in both > > plot() and points(), which can reduce the size of the plotting > > symbols. The default for par(cex) is 1.0, so you might try smaller > > values. > > Changing the pointsize helps a bit, however, it makes the points that > aren't overlapped almost impossible to see. [Single pixels in a > 1900x1600 plot are quite hard for my eyes to dicern, and it basically > gets back to a mere density plot.] > > What I'm really looking for is a method to adjust the mode in which > the points are drawn, so that those that overlap a point of a > different color produce yet a third color in the region of overlap. > something like that? x<-rlnorm(10000) y<-rnorm(10000,mean=0.5) overlap<-which(abs(x-y)<.1) plot(1:10000,x) points(1:10000,y,col=2) points((1:10000)[overlap],y[overlap],col=3) > > Don Armstrong > > -- > "I was thinking seven figures," he said, "but I would have taken a > hundred grand. I'm not a greedy person." [All for a moldy bottle of > tropicana.] > -- Sammi Hadzovic [in Andy Newman's 2003/02/14 NYT article.] > http://www.nytimes.com/2003/02/14/nyregion/14EYEB.html > > http://www.donarmstrong.com > http://www.anylevel.com > http://rzlab.ucr.edu > CheersPetr Pikal [EMAIL PROTECTED] [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
