[R] running R from PHP

[Joe Conway]

brook at biology.nmsu.edu wrote:
> Is there a trick to creating a graphics device in the absence of an
> actual display in order to create an image in a file?

Look for Xvfb (X virtual frame buffer). Not sure what OS you are 
running, but on RH9 and Fedora, at least, there is a package called 
XFree86-Xvfb.

I use Xvfb with the following command:

   /usr/X11R6/bin/Xvfb :5 -screen 0 1024x768x16

More specifically I wrote an init script and set Xvfb up to start as a 
service on boot.

Then in R I use:
   x11(display=":5")

HTH,

Joe