反转上升结构趋势之笑脸选股指标公式

A1A:=EMA(CLOSE, 9);

A1B:=((A1A-EMA(CLOSE,5))<0);

A1D:=BArslAst(A1B);

A21:=IF((A1D>0),(0-2),0);

笑脸:((REF(A21,1)=(0-2)) AND (A21=0));