works with Xlisp-Stat Release 3, not with the older Release 2.
The latest version of Xlisp-Stat (which at the time of writing is version 3.50) can be downloaded via Luke Tierney's Lisp-Stat homepage at the University of Minnesota.
Installation on a Macintosh is the usual "piece of cake". Installation under MS Windows is not too hard, at least if you follow the instructions in the "readme
" file that comes with the software. Installation under Unix can go smoothly (even I have managed to do it!), but call an expert if you encounter any problems...