通达信分时DDX分时副图公式源码

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);