Phpml\Association\Apriori::confidence PHP Метод

Calculates confidence for $set. Confidence is the relative amount of sets containing $subset which also contain $set.

private confidence ( array $set, array $subset ) : float
$set	array
$subset	array
Результат	float

    private function confidence(array $set, array $subset) : float
    {
        return $this->support($set) / $this->support($subset);
    }

Apriori