黑马转强主图之均上攻选股指标公式

ema3:=Ema(C,3),COLORWHITE,LINETHICK2;
EMA13:=EMA(C,13),COLORYELLOW;
EMA21:=EMA(C,21),COLORFF00FF;
EMA55:=EMA(C,55),COLORGREEN;
ER:=BArslAST(REF(crOSS(EMA21,EMA13),1)) AND CROSS(EMA13,EMA21);
均上攻:ER;