改良DDX指标公式
 
N:=5;
 jj:=(HIGH+LOW+CLOSE)/3;qj0:=vol/IF(HIGH=LOW,4,HIGH-LOW);
 qj1:=IF(CAPITAL=0,qj0*(jj-MIN(CLOSE,OPEN)),qj0*IF(HIGH=LOW,1,(MIN(OPEN,CLOSE)-LOW)));
 qj2:=IF(CAPITAL=0,qj0*(MIN(OPEN,CLOSE)-LOW),qj0*IF(HIGH=LOW,1,(jj-MIN(CLOSE,OPEN))));
 qj3:=IF(CAPITAL=0,qj0*(HIGH-MAX(OPEN,CLOSE)),qj0*IF(HIGH=LOW,1,(HIGH-MAX(OPEN,CLOSE))));
 qj4:=IF(CAPITAL=0,qj0*(MAX(CLOSE,OPEN)-jj),qj0*IF(HIGH=LOW,1,(MAX(CLOSE,OPEN)-jj)));
 DDX:((QJ1+QJ2)-(QJ3+QJ4))/SUM(VOL,10)*10,COLOR3D;
 DX:=ma(ddx,5)*N;
 DDX1:sma(DX,3,1);
 DDX2:sma(DDX1,3,1);
 DDX3:wma(DDX2,5);
 1,DOTLINE;
 预警:=DDX>0 and ma(v,5)>ma(ma(v,5),5) and CROSS(DDX1,DDX2);
 天:=COUNT(DDX>0,5);
 DRAWTEXT(预警,DDX*1.06,'★'),LINETHICK3,COLOR00FFFF;
 DRAWTEXTABS(180,0,'一周内翻红:'+NUMTOSTRN(天,0)+' 天'),Color00EEFF;
 DRAWTEXTABS(0,0,'大单动向');