[R] generating graphical output when DISPLAY is not set?

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Tue Apr 30 23:32:38 CEST 2002

Simon Cawley <simon_cawley at affymetrix.com> writes:

> I want to have a process running on a server call R to generate graphical
> output, and the problem is that I'm not guaranteed to have a valid
> DISPLAY set.  I have some clumsy workarounds, but it would be cleaner if
> if I had some way to have R not require the DISPLAY.

The png() driver takes its fonts from the X server pointed to by
DISPLAY, so no-go. However:

If you have ghostscript, you can use the bitmap() driver. (This *is*
on the help page for png()!)

   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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