Keltner Bands
Keltner Bands, an essential technical indicator, consist of an upper and lower band, surrounding a simple moving average. Utilizing AmiBroker data feed, this AFL helps traders gauge volatility and potential price breakouts.
/P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 100, 1 );
Width = Param("Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
CenterLine = MA( P, Periods );
KTop = CenterLine + Width * ATR( Periods );
KBot = CenterLine - Width * ATR( Periods );
Plot( KTop, "KBTop" + _PARAM_VALUES(), Color, Style );
Plot( KBot, "KBBot" + _PARAM_VALUES(), Color, Style );