Prof Brian Ripley: >> matrices, especially given that X11 redraws the plot whenever its window >> is covered/uncovered by another window, or when I switch virtual >> desktops. > > That is a function of your X setup. R does ask for backing store to be > used, and so it seeems your setup is not doing so.
I believe this is a common problem. I have observed it on all systems and R versions I've used. On my Fedora 8 system with R 2.7.0 Patched, the following causes complete repainting every time you I slightly move a window in front of the graphics window: X11(type="Xlib"); n=10^5; plot(rnorm(n),rnorm(n)) Using cairo, the backing pixmap is used (but cairo is extremely slow in plotting 10^5 points, so that doesn't help much :-/ ). -- Karl Ove Hufthammer ______________________________________________ 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.
