Nonlinear Factor Analysis Matlab package
version 1.0, 2004-07-23


LEGALESE--------------------------------------------------------------

Copyright (C) 1999-2004 by
Antti Honkela, Harri Valpola, and Xavier Giannakopoulos.

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 (included in file License.txt) 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.


GENERALISED MATH OPERATORS--------------------------------------------

The package uses and includes portions of Generalized Operators for
Matlab, Copyright (C) 2003 by Aki Vehtari.  These are also distributed
under the GNU General Public License (version 2 or later).

The included version contains versions of these written in Matlab
programming language.  Due to restrictions of the Matlab language,
they are a little slow and use more memory than would be necessary.
The required functions can be easily replaced by more efficient MEX
implementations written by Douglas M. Schwarz and available e.g. at
http://www.lce.hut.fi/~ave/code/genops/.  After downloading the
package, the required gminus and gtimes functions can be compiled
following the instructions in the package.


USAGE-----------------------------------------------------------------

Please refer to the demonstration script 'run_helix' and Matlab
documentation of function 'nlfa'.


CONTACT INFORMATION---------------------------------------------------

The WWW home page of this package is:

  http://www.cis.hut.fi/projects/bayes/

The authors can be reached by paper mail:

  Bayes group
  Laboratory of Computer and Information Science
  P.O.Box 5400
  FI-02015 HUT 
  Finland

or by email:

  nlfa@cis.hut.fi
