=head1 NAME

    README for SGT package

    Last updated for version 2.05, 31 December 2006

=head1 SYNOPSIS

    This document provides a general introduction to the SGT
    package.

=head1 DESCRIPTION

    This Perl module implements the Simple Good Touring (SGT) algorithm 
    for smoothing of probabilistic values developed by William Gale and 
    Geoffrey Sampson. 

    The algorithm is described in the following article: 
    http://l2r.cs.uiuc.edu/~danr/Teaching/CS598-05/Papers/Gale-Sampson-smoothgoodturing.pdf
    
    Basic usage:

	use Statistics::Smoothing::SGT;
	my $sgt = new SGT($frequencyClasses, $total);
	$sgt->calculateSGTValues();
  	$probabilities = $sgt->getProbabilities();
  	$newFrequencies = $sgt->getNewFrequencies();
  	$nBar = $sgt->getNBar();

=head1 AUTHORS

	Florian Doemges, florian@doemges.net
	
	Bjoern Wilmsmann, bjoern@wilmsmann.de

=head1 BUGS

=head1 SEE ALSO

	Homepage: http://www.topicalizer.com/bwilmsmann/wiki/index.php/SGT

=head1 COPYRIGHT

    Copyright (C) 2006, Florian Doemges and Bjoern Wilmsmann,
    Department of Linguistics, Ruhr-University, Bochum
    
    Partially based on the SGT module (Copyright (C) 2004) by Andre Halama
    (halama@linguistics.rub.de) and Tibor Kiss (tibor@linguistics.rub.de),
    Department of Linguistics, Ruhr-University, Bochum

    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.,
        59 Temple Place - Suite 330,
        Boston, MA  02111-1307, USA.

    Note: a copy of the GNU General Public License is available on the web
    at <http://www.gnu.org/licenses/gpl.txt> and is included in this
    distribution under the name GPL.

---
