MathPHP\Statistics\Average::exponentialMovingAverage PHP Метод

    public static function exponentialMovingAverage(array $numbers, int $n) : array
    {
        $m = count($numbers);
        $α = 2 / ($n + 1);
        $EMA = [];
        // Start off by seeding with the first data point
        $EMA[] = $numbers[0];
        // Each day after: EMAtoday = α⋅xtoday + (1-α)EMAyesterday
        for ($i = 1; $i < $m; $i++) {
            $EMA[] = $α * $numbers[$i] + (1 - $α) * $EMA[$i - 1];
        }
        return $EMA;
    }