{ Downloaded From https://www.WiseStockTrader.com }
Periods:=Input("Dlugosć sredniej -",5,50,20);
; {Upp} Mov( C, Periods, S ) + ( 2 * Stdev( C, Periods ))
; {Mid} Mov( C, Periods, S )
; {Low} Mov( C, Periods, S ) - ( 2 * Stdev( C, Periods ))