[R] running R from PHP
mail at joeconway.com
Wed Feb 4 20:21:02 CET 2004
brook at biology.nmsu.edu wrote:
> Both run from terminals and png.R will run without a normal X server
> if Xvfb is running.
> Neither runs under PHP, though (when invoked as "R --no-save <
> They yield the following errors (with the R startup banner deleted
> for compactness):
> could not open PNG file `g.png'
> cannot open `pdf' file argument
From the evidence above, I'd guess a file permission error. The web
server probably runs as the user "apache" or something similar -- does
that user have write permission to the place where you are trying to
create the images?
Try writing to "/tmp/g.png" and "/tmp/g.pdf" and see if the files get
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