[R] png output in batch
dfs at research.att.com
Wed Oct 25 21:59:01 CEST 2000
I'm trying to use R in a cgi script to produce graphics
files in png format, and I'm having a problem.
My shell command line looks like this:
R </usr/dfs/auction/eligibility.R --no-save >/tmp/R.out
and the line in the R script looks like this:
png ("foo.png", pointsize=18)
If I run outside the cgi context, it runs great. When
run as in a cgi script, I get this error message:
Error in X11(paste("png::", filename, sep = ""), width, height, pointsize, :
unable to start device PNG
Is there any way to trick this command into doing what I want?
I can alternatively produce postscript output, and then
convert to png, but I find the resolution disappointing.
(I'm using unix.)
Deborah Swayne AT&T Labs - Research
dfs at research.att.com Shannon Laboratory, Room B295
www.research.att.com/~dfs 180 Park Avenue
973 360-8423 Florham Park, NJ 07932-0971
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