Copyright and Lack of Warranty This software and documentation is copyright (C) 1995, 1996, 2000, 2001, 2006 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.