[R] bug in dev.copy2pdf output?

[Prof Brian Ripley]

This is all in the help page for pdf ... including a request not to 
falsely blame R and two workarounds for the broken viewers.

On Thu, 28 Jul 2011, Duncan Murdoch wrote:

> On 11-07-28 1:22 PM, selwyn quan wrote:
>> 
>> Hi,
>> 
>> Am using R 2.13.1 on Linux (Fedora). Is anybody else having problems with
>> dev.copy2pdf xyplot output with the pch=1 (open circle) symbol? The
>> symbols come out as "q" in the PDF.  dev.copy2eps produces the correct
>> results as does cairo_pdf. Other symbols produced with dev.copy2pdf seem
>> ok.
>> 
>
> There have been reports like this before that turned out to be problems in 
> the viewer, which made inappropriate font substitutions.  How did you 
> determine that the circles came out as q?
>
> Duncan Murdoch
>
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-- 
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