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<?php
/**
* This file is part of the Statistical Classifier package.
*
* (c) Cam Spiers <camspiers@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Camspiers\StatisticalClassifier\Transform;
/**
* @author Cam Spiers <camspiers@gmail.com>
* @package Statistical Classifier
*/
class TokenAppearanceCount
{
public function __invoke($tokenCountByDocument)
{
$transform = array();
foreach ($tokenCountByDocument as $documents) {
foreach ($documents as $document) {
foreach ($document as $token => $count) {
if ($count > 0) {
if (!isset($transform[$token])) {
$transform[$token] = 0;
}
$transform[$token]++;
}
}
}
}
return $transform;
}
}