[R] R plots pdf() does not allow spotcolors?

[Jeremy Hetzel]

By the way, I had trouble importing PDFs into Scribus 1.3.3.  However, 
Scribus 1.4.0rc3 had no problem opening multi-page PDFs, assuming the 
appropriate Ghostscript was also installed (I'm on Windows 7 at the moment). 
 So Matthieu might be able to combine all of his figures into a single PDF, 
convert to spot color in Scribus, then break the PDF apart again for Latex.

Jeremy