[R] connection to X11 problem

[Peter Dalgaard]

(Ted Harding) <Ted.Harding at nessie.mcc.ac.uk> writes:

> On 21-Jul-06 Paquet, Agnes wrote:
> > Dear List,
> > 
> > I am a new Mac user and I am having problem generating png (or jpeg)
> > using the GUI version of R. I installed R-2.3.1.dmg (custom install
> > with
> > everything selected) and X11User.pkg but I am still getting the
> > following X11 connection error when I try to generate a png (or a
> > jpeg):
> > 
> > Error in X11(paste("png::", filename, sep = ""), width, height,
> > pointsize,  : 
> >     unable to start device PNG
> > In addition: Warning message:
> > unable to open connection to X11 display ''
> > 
> > I tried to set up the DISPLAY variable using the command:
> > 
> > Sys.putenv("DISPLAY"=":0")
> > 
> > but I am still running into the same problem. 
> 
> Like Marc, I don't use a Mac either. But the underlying BSD OS
> is basically similar to Linux. On Linux, my primary X11 DISPLAY
> envvar would be ":0.0", so (at a guess) I suggest you try
> 
>   Sys.putenv("DISPLAY"=":0.0")
> 
> Hoping this helps!
> Ted.

A silly question must be asked: One thing is *installing* the X11
package on a Mac, but you do need to be actually *running* an X
server. Are you?

-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907