#hostingforum.kr
php

function stochastic_oscillator($high, $low, $close, $k_period = 14, $d_period = 3) {

    $k_values = array();

    $d_values = array();



    for ($i = 0; $i < count($close); $i++) {

        if ($i >= $k_period) {

            $max = max(array_slice($high, $i - $k_period + 1, $k_period));

            $min = min(array_slice($low, $i - $k_period + 1, $k_period));

            $k = (($close[$i] - $min) / ($max - $min)) * 100;

            $k_values[] = $k;



            if ($i >= $d_period) {

                $d_max = max(array_slice($k_values, $i - $d_period + 1, $d_period));

                $d_min = min(array_slice($k_values, $i - $d_period + 1, $d_period));

                $d = (($d_max - $d_min) / 100) * 100;

                $d_values[] = $d;

            } else {

                $d_values[] = 0;

            }

        } else {

            $k_values[] = 0;

            $d_values[] = 0;

        }

    }



    return array($k_values, $d_values);

}



// 예제 데이터

$high = array(100, 120, 110, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290);

$low = array(80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270);

$close = array(90, 110, 100, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290);



// Stochastic Oscillator (StochF) 계산

list($k_values, $d_values) = stochastic_oscillator($high, $low, $close);



// 결과 출력

echo "Stochastic Oscillator (StochF) 결과:
";

for ($i = 0; $i < count($k_values); $i++) {

    echo "날짜: $i, K: $k_values[$i], D: $d_values[$i]
";

}