In a batch script (i.e. there is no screen device), I would like to create both a PDF file and a PNG file from the same plot. I thought this would be the way to do it, but it isn't: R> bitmap("copy.png", "png16m", res=300) R> pdf("copy.pdf") R> plot(1:10, 1:10) # Plot into pdf file R> dev.copy(which=2) # Copy to png file R> dev.off(3) # Close pdf R> dev.off(2) # Close png The PDF comes out fine, but the PNG appears blank. Any ideas what I'm doing wrong? TIA. -- -- David Brahm (brahm at alum.mit.edu)