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<?php declare(strict_types=1); namespace Phpml\FeatureSelection\ScoringFunction; use Phpml\FeatureSelection\ScoringFunction; use Phpml\Math\Statistic\ANOVA; final class ANOVAFValue implements ScoringFunction { public function score(array $samples, array $targets): array { $grouped = []; foreach ($samples as $index => $sample) { $grouped[$targets[$index]][] = $sample; } return ANOVA::oneWayF(array_values($grouped)); } }
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