通达信分时DDX分时副图公式

源码

{分时DDX}
逐笔大单买卖差:(LARGETRDINNUM-LARGETRDOUTNUM);
 DDXM:=逐笔大单买卖差*SUM(VOL,0)/CAPITAL*100;
 DDX:=DDXM-REF(DDXM,1),COLORSTICK,LINETHICK2;
 DDX累积:=SUM(DDX,0);