SPADE: Spannign Trees for Flow Cytometry Data 
Copyright (C) 2010-2013  Stanford University

This program 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; either version 2 of the License, or
(at your option) any later version.

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.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

Portions of this software are also licensed under the Artistic-2.0
license.

Specifically:

1) Functions are incorporated from the TeachingDemos package, authored
by Greg Snow <greg.snow at imail.org>, and licensed under the Artistic-2.0 license.
The Artistic-2.0 license is available in the share/licenses directory of the R
source or home directory.