通达信巧用KDJ指标公式

KDJ指标的本质是股价在某时期内最高价和最低价中所处的位置。默认参数9，就是说股价在9天中最高价和最低价所处位置。如果j达到100了，你以为是到顶了；如果我把9改成90或180或240，那它就是刚刚涨的开始；
N:=180;
RSV:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
K:=SMA(RSV,3,1);
D:=SMA(K,3,1);
J:3*K-2*D;
P:IF(J<D,HHV(J,5),REF(HHV(J,5),3));
W:MA(P,5);
STICKLINE(J>REF(J,1),J,W,0,0),COLORLIMAGENTA;
STICKLINE(J<=REF(J,1),J,W,0,0),COLORLIGREEN;
JJ:IF(J>REF(J,1) AND C>O,J+DYNAINFO(17)+DYNAINFO(14),J),COLORWHITE;
DRAWBAND(JJ,RGB(255,255,0),J,20);
DRAWICON(CROSS(JJ,W),J,26);
DRAWICON(CROSS(JJ,CONST(REF(HHV(J,3),2))),J,26);
DRAWICON(CROSS(JJ,10) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,20) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,30) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,40) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,50) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,60) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,70) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,80) AND DYNAINFO(17)>2,J,26);
DRAWICON(CROSS(JJ,90) AND DYNAINFO(17)>2,J,26);