N:=20;BOLL:=MA(CLOSE,N);UB:=BOLL+2*STD(CLOSE,N);LB:=BOLL-2*STD(CLOSE,N);DD:=CLOSE>BOLL AND O>BOLL AND CLOSE<UB;KK:=COUNT(DD,20)>=3;KDR:=CLOSE>UB;XG:FILTER(KK AND KDR,20);