help with indicator basics

[mtthwbrnd]

Can anybody say why this indicator does not show up in a chart when I add it? A panel appears on the chart, but there is no line in the chart.

thanks,
Matthew.

#region Using declarations
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Data;
using NinjaTrader.Indicator;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Strategy;
#endregion

namespace NinjaTrader.Indicator {
    public class R_indicator : Indicator {
        uint timeCounter = 0; 
        DataSeries R;
        protected override void Initialize() {
            R = new DataSeries(this);
            Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Line, "R"));
        }
        protected override void OnBarUpdate() {
             if (timeCounter > 0) R.Set(Close[0]-Close[1]); else R.Set(0);
             Print(timeCounter + "   " + R[0]);
             timeCounter += 1;
        }
    }
}

[NinjaTrader_Bertrand]

Please check into this tip here - http://www.ninjatrader-support2.com/...ead.php?t=3170

You likely see an error in the log, as you attempt to access bars not defined at the OnBarUpdate() start...

[mtthwbrnd]

Thanks Bertrand,

I added:
if (CurrentBar < 1) return;

to the start of OnBarUpdate() but I still have the same problem. Note that my timeCounter variable achieves the same anyhow. There are no errors output to the log.

Any other ideas?

Thanks,
Matthew.

[NinjaTrader_Josh]

Matthew,

You didn't set anything to a plot. You set it to the R DataSeries object which is something you created as a custom DataSeries. You need to set values to the actual plot itself, not a custom DataSeries.