Hans-Bernhard Broeker <broeker <at> physik.rwth-aachen.de> writes:
> Whatever the problem is, it's quite clearly in your Perl script. You'll
> have to debug it outside the web server context, or at least export the
> actual commands it will send to gnuplot, in the problematic cases,
> before we can even begin to look at this from the gnuplot perspective.
You're right. The problem is with perl, not gnuplot. I tested a much simpler
version of the script that didn't involve a web form; it works fine. I'll direct
my question to a perl list.
Thanks for the reply.
BTW, I did find a way around the problem by writing the gnuplot commands to a
file and then having gnuplot retrieve the commands from the file in batch mode.
"I hated life and was constantly on the verge of suicide, from which, however, I
was restrained by the desire to know more mathematics."
Bertrand Russell, The Conquest of Happiness (1930)