pstoedit

   Has onyone experience with "pstoedit" (http://www.pstoedit.net/pstoedit)
to convert eps graphs generated by R on Linux to Windows formats (WMF or
EMF)? Does this way work? Is there an other, better way?

You can only do that using pstoedit on Windows.
                                     ^^^^^^^^^^
A much better way on Windows is to run the R code on R for Windows and use 
its win.metafile() device.  Another better way is to use Adobe 
Illustrator.

The ability to generate WMF on Unix is a long-standing wish at

 	http://developer.r-project.org/WindowsTODO.html

but no one has ever contributed a working device (although it would be no 
harder than say the PDF device).

Note that because of font differences, conversion from EPS to WMF can only 
ever be approximate.

   The fact that the website of pstoedit mentions that a Better Enhanced
Windows Meta Files (EMF) plugin exists for Windows 9x/NT/2K/XP only makes me
expect poor quality. Am I right?

No quality at all unless you are using Windows where it is unnecessary.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595