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.
