function KDDot($stocknum, $var1, $var2, $var3, $kd, $period)
{
$close = getclose($stocknum, $period);
$low = getlow($stocknum, $period);
$hig = gethigh($stocknum, $period);
$close[0] = 0;
$low[0] = 0;
$hig[0] = 0;
$k = array(50);
$d = array(50);
for ($num = $var3; $num < count($close); $num++) {
$min = $low[$num];
for ($i = $num - $var3 + 1; $i <= $num; $i++) {
if ($min > $low[$i]) {
$min = $low[$i];
}
}
$max = $hig[$num];
for ($i = $num - $var3 + 1; $i <= $num; $i++) {
if ($max < $hig[$i]) {
$max = $hig[$i];
}
}
$close[1 + $num - $var3] = ($close[$num] - $min) / ($max - $min) * 100;
array_push($k, $close[1 + $num - $var3] * (1 / $var1) + $k[$num - $var3] * (1 - 1 / $var1));
array_push($d, $k[1 + $num - $var3] * (1 / $var2) + $d[$num - $var3] * (1 - 1 / $var2));
}
if ($kd == 'K') {
return $k;
} else {
return $d;
}
}
function testKD($stocknum, $var1, $var2, $var3, $period)
{
$close = getclose($stocknum, $period);
$low = getlow($stocknum, $period);
$hig = gethigh($stocknum, $period);
$close[0] = 0;
$low[0] = 0;
$hig[0] = 0;
$k = array(50);
$d = array(50);
for ($num = $var3; $num < count($close); $num++) {
$min = $close[$num];
for ($i = $num - $var3 + 1; $i <= $num; $i++) {
if ($min > $low[$i]) {
$min = $low[$i];
}
}
$max = $close[$num];
for ($i = $num - $var3 + 1; $i <= $num; $i++) {
if ($max < $hig[$i]) {
$max = $hig[$i];
}
}
$close[1 + $num - $var3] = ($close[$num] - $min) / ($max - $min + 1.0E-9) * 100;
array_push($k, $close[1 + $num - $var3] * (1 / $var1) + $k[$num - $var3] * (1 - 1 / $var1));
array_push($d, $k[1 + $num - $var3] * (1 / $var2) + $d[$num - $var3] * (1 - 1 / $var2));
}
if ($k[count($k) - 1] > $d[count($d) - 1]) {
return 1;
} else {
if ($k[count($k) - 1] < $d[count($d) - 1]) {
return -1;
} else {
return 0;
}
}
}
