The purpose of this paper was to give a flavour of the philosophy of
statistical
graphics underlying the software design in Quail. The software itself is
more extensive
than could be detailed here, and more importantly,
the architecture
is open-ended so that other graphical displays beyond those provided
can be constructed; Oldford (1997) gives an example of
implementing a statistical
strategy using the graphical and computing facilities of Quail.
The Quail system itself is based on the Common Lisp programming language,
and a programming environment (either Macintosh Common Lisp from Digitool
or Allegro Common Lisp
from Franz, Inc). For details on availability, etc, see
http://setosa.uwaterloo.ca/
ftp/Quail/Quail.html.