As I understand it, there are multiple competing standards for the Windows Metafile (WMF) format. See --> http://en.wikipedia.org/wiki/Windows_Metafile
I like WMF because it is vector based and thus scales nicely. But eventually I gave up on it because the WMF format was unpredictable when exported to other applications. I would encourage you to experiment with the bmp() and png() functions. If you specify a large enough value for width and height so that the don't get re-scaled, then they will look just as good as the WMF format. If you like to tinker with a graph onscreen and then save it, you need to open the graphics window at the "right" size so that the saved BMP or PNG file does not need rescaling in Powerpoint. I hope this makes sense. Graphics are tricky in any package. Steve Simon, www.pmean.com -- View this message in context: http://r.789695.n4.nabble.com/Strange-behaviour-of-R-graphics-copied-to-PowerPoint-tp4668535p4668586.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.