X_1:=90;
X_2:=3;
X_3:=REF(LLV(LOW,X_1),X_2);
X_4:=REFDATE(X_3,DATE);
抄底:X_4=LOW AND (CLOSE-LOW OPEN-CLOSE OR OPEN-LOW CLOSE-OPEN);
X_1:=90;
X_2:=3;
X_3:=REF(LLV(LOW,X_1),X_2);
X_4:=REFDATE(X_3,DATE);
抄底:X_4=LOW AND (CLOSE-LOW OPEN-CLOSE OR OPEN-LOW CLOSE-OPEN);