Code Coverage
 
Classes and Traits
Functions and Methods
Lines
Total
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 CRAP
83.33%
10 / 12
TFIDF
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 4.07
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10 / 12
 __invoke( $tokenCountByDocument, $documentCount, $tokenAppreanceCount )
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 4.07
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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 TFIDF
{
public function __invoke(
$tokenCountByDocument,
$documentCount,
$tokenAppreanceCount
) {
foreach ($tokenCountByDocument as $category => $documents) {
foreach ($documents as $documentModel => $document) {
foreach ($document as $token => $count) {
$tokenCountByDocument
[$category]
[$documentModel]
[$token] = log($count + 1, 10) * log(
$documentCount / $tokenAppreanceCount[$token],
10
);
}
}
}
return $tokenCountByDocument;
}
}