N:=9;M1:=3;M2:=3; RSV:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100; K:SMA(RSV,M1,1); D:SMA(K,M2,1); J:3*K-2*D; boll:MA(J,20),LINETHICK3; UPPER:BOLL+2*STD(J,20); LOWER:BOLL-2*STD(J,20); IF(J>REF(J,1),J,DRAWNULL),COLORRED,LINETHICK2; IF(J