DDX公式如下

AA:=VOL/((HIGH-LOW)*2-ABS(CLOSE-OPEN));
买量:=IF(CLOSE>OPEN,AA*(HIGH-LOW),IF(CLOSE<OPEN,AA*((HIGH-OPEN)+(CLOSE-LOW)),VOL/2)),LINETHICK0;
卖量:=IF(CLOSE>OPEN,0-AA*((HIGH-CLOSE)+(OPEN-LOW)),IF(CLOSE<OPEN,0-AA*(HIGH-LOW),0-VOL/2)),LINETHICK0,COLORCYAN;
大单动向:(买量+卖量)*10000/FINANCE(7),COLOR00FFFF,NODRAW;
STICKLINE(大单动向<0,0,大单动向,2,0),COLORCYAN;
STICKLINE(大单动向<0,0,大单动向,2,0),COLORCYAN;
STICKLINE(大单动向<0,0,大单动向,2,0),COLORCYAN;
STICKLINE(大单动向<0,0,大单动向,0.5,0),COLORCYAN;
STICKLINE(大单动向>0,0,大单动向,2,0),COLORRED;
STICKLINE(大单动向>0,0,大单动向,1,0),COLORRED;
STICKLINE(大单动向>0,0,大单动向,1.5,0),COLORRED;
STICKLINE(大单动向>0,0,大单动向,0.5,0),COLORRED;
MA1:MA(大单动向,N)COLORYELLOW;

选股源码

AA:=VOL/((HIGH-LOW)*2-ABS(CLOSE-OPEN));
买量:=IF(CLOSE>OPEN,AA*(HIGH-LOW),IF(CLOSE<OPEN,AA*((HIGH-OPEN)+(CLOSE-LOW)),VOL/2)),NODRAW;
卖量:=IF(CLOSE>OPEN,0-AA*((HIGH-CLOSE)+(OPEN-LOW)),IF(CLOSE<OPEN,0-AA*(HIGH-LOW),0-VOL/2)),NODRAW,COLORCYAN;
DD:=(买量+卖量)*10000/FINANCE(7);
TJ1:NDAY(DD,REF(DD,1),3);