Kasper Daniel Hansen
khans****@stat*****
Tue Jun 13 08:13:40 JST 2006
Hi Nick
On the Mac you have two screen plotting devices: the X11 interface
and the Aqua interface. I assume you are interested in getting X11 to
work. For that to happen you need to
1) Install and start the X11 server from the development tools
2) Make sure your DISPLAY variable is set
Since you can do everything in a terminal I assume that X11 is
installed and started. You now need to make the R runing inside
Carbon Emacs aware of your display setting. One way to make sure that
it works is doing
R> Sys.putenv(DISPLAY = ":0.0")
this sets the environment variable from inside of R. You can check
what the current value is by doing \
R> Sys.getenv("DISPLAY")
The reason why you get a Rplot.ps file is that R at startup does not
detect X11 and then it uses the postscript device as the default
device (the plot command writes to the default device per ....
default :)
If you want a more permanent solution (and you do) you can put it
inside ~/.profile so that this file contains the following line
export DISPLAY=:0.0
You may have to log out and back in again for this to work. The
advantage of putting it in .profile is that it will work for other
applications too. Another way, which is R specific, is to put the
command above inside an R configuration file. There are several
choices (~/.Renviron, ~/.Rprofile) , but some of them will not work
if you need to run R in BATCH mode. I suggest you go the .profile
route. The reason why it works under the terminal is probably because
you have some display setting which is not being detected outside the
terminal (note again, that you may have to log out and log in again
fro this to work).
As you can guess, I am using R under ESS without any problems. Please
get back if the above does not help. In that case, please post the
results of Sys.getenv("DISPLAY") from both the terminal version of
ESS and the Carbon Emacs version.
/Kasper
On Jun 12, 2006, at 8:15 AM, Nick Reich wrote:
> Hello,
>
> I am using R (the statistical software) with this Emacs package and
> am trying to have graphical windows pop-up as I work in my
> interactive session with R. For example, I'd like to type "plot(rnorm
> (50))" and have the little R plot of these fifty observations from a
> normal distribution be displayed in a new graphical window. This is
> possible when running emacs in a terminal-type environment. Is is
> possible using this installation of Emacs?
>
> As it is, any plots generated by commands that I type are sent by
> default to a file called Rplots.ps in the working directory. But for
> an interactive session, this is not so useful.
>
> Is there a way to coerce these graphics to open up in this or another
> application?
>
> Thanks,
> Nick
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