為何多週期KD選出來的股票周月KD值都不對?

各位大大能否解答一下，多週期KD是不是有問題?

setbarfreq("D");

setTOtalBar(40);

input: Length(5), RSVt(3), Kt(3);

variable: rsv(0), k(0), _d(0);

variable:rsv_w(0), kk_w(0), dd_w(0);

variable: rsv_m(0), kk_m(0), dd_m(0);

Stochastic("D",Length, RSVt, Kt, rsv, k, _d);

xf_stochastic("W", 9, 3, 3, rsv_w, kk_w, dd_w);

xf_stochastic("M", 9, 3, 3, rsv_m, kk_m, dd_m);

condition1= k cross Over _d;

condition3=kk_w > dd_w and kk_m > dd_m

condition4=volume>volume[1]*1.5

and (volume>average(volume,5)or volume>average(volume,60));

condition5=close>close[1]*1.02;

if condition1 and condition3 and condition4 and condition5 

then ret=1; 

 outputField1(kk_w,2,"周K");

 outputField2(dd_w,2,"周d");