通达信OBV箱体+选股指标公式

VA:=IF(CLOSE>REF(CLOSE,1),vol,-VOL);
obv:SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0),COLOR00FFFF;
MaoBV:MA(OBV,13),COLOR996699;
箱顶:HHV( OBV,20),COLOR0000FF;
箱底:LLV( OBV,20),COLOR00FF00;
UPPER:MAOBV+2*STD(OBV,20),COLORMAGENTA;
LOWER:MAOBV-2*STD(OBV,20),COLORFF0000;