Note that Lispstat itself is no longer developed (Luke Tierney has joined the R Core team), however it still runs without any problem on most machines. ViSta however continues to be developed. If you are interested in Lisp and statistics you might want to have a look at the Incanter project.

XLISP-Stat (Luke Tierney) is open source, available for most platforms. It is based on XLISP, a public domain LISP It provides an object oriented programming environment for data analysis and interactive graphics. It offers highly interactive objects and methods for statistics, linked graphical objects and is easily extensible (see below Vista, Arc etc).

Further links
Broken/Lost links