ddx成交量

九散人[给力]ddx成交量，有点意思。但c=o的几种情况，包括一字涨跌停有偏差，现修订如下。
增加假阴、假阳提示。去地量提示。
还有一种情况有疏漏，开盘涨跌停中途打开，后继续收涨跌停的情况没有包含进去。也欢迎各位再次纠错和补充。
预量:IF(CURRBARSCOUNT=1 AND PERIOD=5,VOL*240/FROMOPEN,VOL),NODRAW;
STICKLINE(CURRBARSCOUNT=1 AND PERIOD=5,预量,0,-1,-1),COLOR00C0C0;
实量:VOL,VOLSTICK,COLORLIGREEN;
STICKLINE(C=REF(C,1),0,V,0,0),COLORWHITE;
STICKLINE(C>REF(C,1) AND C<O,0,V,0,0),COLORRED;
STICKLINE(C<REF(C,1) AND C>O,0,V,0,0),COLORGREEN;
BASED:=VOL/((H-L)*2-ABS(C-O));
BUY:=IF(C>O,BASED*(H-L),IF(C<O,BASED*((H-O)+(C-L)),IF(H=L AND C>REF(C,1),VOL,IF(H=L AND C<REF(C,1),0, VOL/2)))),COLORRED,NODRAW;
SALE:=IF(C>O,BASED*((H-C)+(O-L)),IF(C<O,BASED*(H-L),IF(H=L AND C<REF(C,1),VOL,IF(H=L AND C>REF(C,1),0, VOL/2)))),COLOR00FF00,NODRAW;

买入净值%:IF(BUY>=SALE,(BUY-SALE)/VOL*100,DRAWNULL),NODRAW;
卖出净值%:IF(BUY<=SALE,(SALE-BUY)/VOL*100,DRAWNULL),NODRAW;

STICKLINE(BUY>SALE,0,BUY-SALE,0.1,0),COLOR00F7F7;
STICKLINE(BUY<SALE,0,SALE-BUY,0.1,0),COLORFF1717;

DDX:=BUY-SALE;
MADDX:=MA(DDX,5)*5;
DDX1:SMA(MADDX,3,1),COLORFFFFFF,LINETHICK1;
DDX2:SMA(DDX1,3,1),COLORF100F1,LINETHICK1;
DDX3:SMA(DDX2,3,1),COLOR00D900,LINETHICK1;