  Copyright (c) 1995-2004 by Radford M. Neal
  
  Permission is granted for anyone to copy, use, modify, or distribute these
  programs and accompanying documents for any purpose, provided this copyright
  notice is retained and prominently displayed, along with a note saying 
  that the original programs are available from Radford Neal's web page, and 
  note is made of any changes made to these programs.  These programs and 
  documents are distributed without any warranty, express or implied.  As the
  programs were written for research purposes only, they have not been tested 
  to the degree that would be advisable in any important application.  All use
  of these programs is entirely at the user's own risk.
