Phpml\Metric\Accuracy::score()

Complexity

Conditions	5
Paths	7

Size

Total Lines

19

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public static function score(array $actualLabels, array $predictedLabels, bool $normalize = true)
    {
        if (count($actualLabels) != count($predictedLabels)) {
            throw new InvalidArgumentException('Size of given arrays does not match');
        }

        $score = 0;
        foreach ($actualLabels as $index => $label) {
            if ($label == $predictedLabels[$index]) {
                ++$score;
            }
        }

        if ($normalize) {
            $score /= count($actualLabels);
        }

        return $score;
    }
}