BI:=(H+L+O+C)/; BOL:EMA(BI,N); UPPER:BOLL+N1*STD(CLOSE,N); LOWER:BOLL-N1*STD(CLOSE,N); MA1:MA(CLOSE,M1); MA2:MA(CLOSE,M2); MA3:MA(CLOSE,M3); MA4:MA(CLOSE,M4);