Hello,
I'm trying to adapt some R code that works on Windows so that it will work
on a Linux machine.
The command :
png("myFile.png", width=600, height=600)
fails claiming that it is impossible to establish a connection with X11.
(Error messages are in French, so I'm not pasting them here!)
I have libpng installed:
>rpm -qa libpng*
libpng-1.0.12-2
libpng-devel-1.0.12-2
So I don't understand why R thinks I'm trying to connect to X11. I haven't
been able to find many examples of R graphics code specifically for Linux,
but I have the impression that if libpng is installed, the graphics commands
are identical. The libpng manual is not useful, because it does not mention
use of libpng commands in an R environment.
I'm using R 2.4.1, which I recently installed. Do I have to install a more
recent libpng ? If so, do I have to reconfigure and remake R ?
I've also read that no graphics devices are available under R CMD BATCH.
Does that really mean that I can't create graphics from some R code that I
launch in noninteractive mode?
Thanks in advance !
Rebecca Tagett
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