技術分析的KD值與選股策略的KD值，表示出來的數值不同，請問選股策略程式可以如何修改?

您好,

選股策略程式碼如下，因KD數值與技術分析的KD數值不同，請問選股策略程式可以如何修改?

input: Length(5), RSVt(3), Kt(3);
variable: rsv(0), k(0), _d(0),string1("");

SetTotalBar(maxlist(Length,6) * 3);

SetInputName(1, "天數");
SetInputName(2, "RSVt權數");
SetInputName(3, "Kt權數");

Stochastic(Length, RSVt, Kt, rsv, k, _d);
string1 = formatMQY(date);
Ret = 1;
outputfield(1,open,2,"open");
outputfield(2,close,2,"close");
outputfield(3,high,2,"high");
outputfield(4,low,2,"low");
outputfield(5,k,2,"K值");
outputfield(6,_d,2,"D值");
outputfield(7,string1,0,"Date");