Take a looks at the 'hexbin' package on BioConductor. It may give you want you want.
On 10/21/07, baptiste Auguié <[EMAIL PROTECTED]> wrote: > Dear R gurus, > > I'm trying to visualize a matrix 256 x 920 using image(), but i find > the display too slow (~ 1 minute –– admittedly, my iBook G4 isn't > very fast). The aim is not to get a good resolution image, but rather > have a quick look at the matrix. I couldn't find a way to plot a > smaller set of points from my data in a sensible manner (basically, i > want to decrease the resolution). Is there an easy option for this > purpose in image(), or possibly the lattice equivalent? > > Minimal example: > > x<-c(1:256) > y<-c(1:920) > z<-x%*%t(y) > image(x,y,z) > > > Best regards, > > baptiste > > ______________________________________________ > 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ 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.