inputs: FastLen( 12), SlowLen( 26), Length( 10 ), StDv(1); VARS: BB_Macd(0), Avg(0), SDev(0), Upper_band(0), Lower_band(0); BB_Macd= MACD( Close, FastLen, SlowLen ) ; Avg = XAverage(BB_Macd,Length); SDev = StdDev( BB_Macd, Length ) ; Upper_Band = Avg + StDv * SDev ; Lower_Band = Avg - StDv * SDev ; Plot1(BB_Macd); Plot2(Upper_Band); Plot3(Lower_Band);