This is in the FAQ, if I remember correctly... However, alternatively:
As Jeff Horner recently pointed out on the list, the Cairo package is a
good way of generating png without needing an X display. You may want
to look into that. I've just installed cairo on our CentOS boxes and
the Cairo pac
Try using png2() in R.utils, which immitates png() but uses bitmap()
and ghostscript to create the PNG file. You need to set 'R_GSCMD' to
tell R where ghostscript is located - you can use
System$findGhostscript() at startup to let R try to locate ghostscript
for you.
/H
On 4/19/07, Mark Liberman
I'd like to use an R CMD BATCH script as part of a chron job that is set
up to run every hour.
The trouble is that the script creates a graphical output in a file via
png(), and apparently this in turn works through X.
When cron invokes the job, no X server is available -- I suppose that
the DISP
