N:=84;
AA:=EMA(100*(HHV(HIGH,N)-CLOSE)/(HHV(HIGH,N)-LLV(LOW,N)),5);
BB:=AA>=18 AND AA<88;
DD:=AA<REF(AA,2) and AA<REF(AA,3);
BB AND DD;

 

通达信多头起步选股指标公式