MCordingley\Regression\Algorithm\GradientDescent\Gradient\Logistic::predicted PHP Метод

    private function predicted(array $coefficients, array $features) : float
    {
        return 1.0 / (1.0 + exp(-array_sum(array_map(function ($coefficient, $feature) {
            return $coefficient * $feature;
        }, $coefficients, $features))));
    }