NinjaTrader create Indicator type @ runtime

gistfile1.cs

using System;
using System.ComponentModel;

namespace NinjaTrader.Indicator
{
    [Description("f")]
    public class derp : Indicator
	{
		IndicatorBase myEMA;
        protected override void Initialize()
        {
            Overlay				= true;
			CalculateOnBarClose = false;
		}
		
		protected override void OnStartUp()
		{
			myEMA = CreateInstance("EMA", Input);
		}
		
		protected override void OnBarUpdate()
		{
			if (myEMA == null)
				return;
			Print("Runtime: " + myEMA[0]);
		}
				
		// I highly do not recommend this, as it mimics the NT wrapper code, minus the caching functionality
		private IndicatorBase CreateInstance(string indicatorName, Data.IDataSeries inputSeries)
		{
			Type indicatorType = Type.GetType("NinjaTrader.Indicator." + indicatorName);
			if (indicatorType == null)
				return null;			
			IndicatorBase indicatorBase = (IndicatorBase) Activator.CreateInstance(indicatorType);
			indicatorBase.BarsRequired = BarsRequired;
			indicatorBase.CalculateOnBarClose = CalculateOnBarClose;
			indicatorBase.ForceMaximumBarsLookBack256 = ForceMaximumBarsLookBack256;
			indicatorBase.MaximumBarsLookBack = MaximumBarsLookBack;
			indicatorBase.Input = inputSeries;
			Indicators.Add(indicatorBase);
			indicatorBase.SetUp();
			return indicatorBase;
		}
    }
}