This is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by 
the Free Software Foundation; version 2. 

This program is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU General Public License for more details. 

These can also be viewed at http://www.r-project.org/Licenses/GPL-2
