>>>>> "rif" == rif <[EMAIL PROTECTED]> writes:
rif> I'm trying to understand and use CMUCL's external programming
rif> interface, but I'm not having much luck with communications.
rif> What I actually want to do is start the gnuplot program and use it to
rif> plot data contained in arrays. So my first attempt is
rif> (setf p (run-program "gnuplot" nil
rif> :wait nil
rif> :input :stream
rif> :output t
rif> :error :output))
[snip]
rif> I would like to be able to send commands to the gnuplot via this
rif> stream, for instance using format, but this did not work:
rif> * (format (process-input p) "plot sin(x)~%")
rif> NIL
rif> It returned nil, and nothing was plotted. What am I missing?
Perhaps you need to flush the output via force-output or
finish-output.
You may also want to look at clocc (clocc.sourceforge.net) which has
an interface to gnuplot similar to what you are trying to do.
Ray
