I have no scripting knowledge. I cut and pasted the following from other coding examples.
public class DonchianBands : Indicator { #region Variables private int period = 20; double upperValue = Bollinger(2, 20).Upper[0]; double lowerValue = Bollinger(2, 20).Lower[0]; #endregion /// <summary> /// This method is used to configure the indicator and is called once before any bar data is loaded. /// </summary> protected override void Initialize() { Add(new Plot(Color.Orange, "Mean")); Add(new Plot(Color.Blue, "Upper")); Add(new Plot(Color.Blue, "Lower")); Overlay = true; } /// <summary> /// Called on each bar update event (incoming tick) /// </summary> protected override void OnBarUpdate() { Value.Set((MAX(upperValue, Period)[0] + MIN(lowerValue, Period)[0]) / 2); Upper.Set(MAX(upperValue, Period)[0]); Lower.Set(MIN(lowerValue, Period)[0]); }
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