Formula na kanal do Amibrokera:
Periods = Param("Periods", 22, 2, 100 );
Factor = Param ("Factor", 27, 1, 50 );
Avg = EMA(Close, Periods);
Csize = StDev(2*Max(abs(High-Avg) ,abs(Low-Avg)) / Avg,100)*Factor/10;
Channel = Csize*Avg;
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( Avg+Channel/2, "Upper Channel" + _PARAM_VALUES(), Color, Style );
Plot( Avg-Channel/2, "Lower Channel" + _PARAM_VALUES(), Color, Style );
Można regulować wartość odchylenia standardowego - "Factor" domyślnie ustawione na 2,7 (27) i wartość EMA - "Periods" domyślnie 22dni.