On non-Starlink systems you may have to replace /star by some other path name to locate the files referred to in this section.
Binaries of the example programs can be found in /star/bin/examples/pgplot. They can be run with a command such as:
/star/bin/examples/pgplot/pgdemon
where n is between 1 and 17, provided that they have
been installed. (They may not have been in order to save disk space).
PGPLOT --- Graphics Subroutine Library