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#!/usr/bin/perl
=head1 NAME

lda.pl - This program returns the topics of a document set.

=head1 SYNOPSIS

This is a utility that performs Latent Direchlet Allocation over a 
document set. 

=head1 USAGE

Usage: lda.pl DIR

=head1 INPUT

=head2 DIR 

The directory of text documents 

=head1 OPTIONS

Optional command line arguements

=head3 --help

Displays the quick summary of program options.

=head3 --version

Displays the version information.

=head1 SYSTEM REQUIREMENTS

=over

=item * Perl (version 5.8.5 or better) - http://www.perl.org

=back

=head1 CONTACT US
   
  If you have any trouble installing and using Algorithm-LDA, 
  please contact us via :
    
      Bridget T. McInnes: bthomson at vcu.edu

=head1 AUTHORS

 Nick Jordan, Virginia Commonwealth University 

 Bridget T. McInnes, Virginia Commonwealth University 

=head1 COPYRIGHT

Copyright (c) 2016

 Bridget T. McInnes, Virginia Commonwealth University 
 bthomson at vcu.edu

 Nick Jordan, Virginia Commonwealth 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.,