Trellis pdf graphics files

[Frank E Harrell Jr <fharrell@virginia.edu>]

I am using trellis.device('pdf.graph', filename, height=4, width=4,
image=c(0,0,4,4))
to make a Trellis graphic in S-Plus 6.0 for Linux.  trellis.device
doesn't
officially support pdf.graph, but other aspects seem to work OK.
The resulting .pdf file seems to have a lot of wasted space around the
graph.  Has anyone figured out a way to produce a compact pdf image
using pdf.graph?
-- 
Frank E Harrell Jr              Prof. of Biostatistics & Statistics
Div. of Biostatistics & Epidem. Dept. of Health Evaluation Sciences
U. Virginia School of Medicine  http://hesweb1.med.virginia.edu/biostat