Multi Instrument issues

[Tdschulz]

I am attempting to use the Add() feature to compare a custom indicator applied to two different instruments. I have followed the scripts provided for adding second instruments but my code sometimes works, sometimes does not, and I can't find a common denominator. If I add another timeframe (or Range size) and do not deviate from the master instrument input series, then the indicator works without any problems. But once I change instruments on the second series, the code becomes unstable. Below are the three attempts I've used to Add.

//  Add(SecondInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);
//  Add(SecondInstrument, PeriodType.Range, Size, MarketDataType.Last);
//  Add(PeriodType.Range,13);  //This seems to work consistently

Any further examples of code using a second input series would be appreciated.

[NinjaTrader_AdamP]

Tdschulz,

Please be sure that you are separating the OnBarUpdate() calls using BarsInProgress.

BarsInProgress : http://www.ninjatrader.com/support/h...inprogress.htm

Multi Instrument Strategies : http://www.ninjatrader.com/support/h...nstruments.htm

Please let me know if I may assist further.

[Tdschulz]

The structure of my code is below. Something with calling the second instrument is the issue because calling another size range chart of the same instrument is no problem. I only run into issues when trying to use the SecondInstrument method of Add(). I've tried a few variations of Adding the second instrument including hard coding into the code and still it sometimes works and other times doesn't. The stranger part is that sometimes I load the indicator, it does not come up with anything, I change the data series from "load days" to "load bars" and then it works. Sometimes it's the opposite though.
I'm starting to feel crazy....

private double Indicator1()
			{	
				return ("this area is a combination of custom indicators all using BarArray[0]")
			}	
		
		
		private double	Indicator2()
			{	
				return ("Combination of custom indicators using BarArray[1]")
			}
				
				
		#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(SecondInstrument, PeriodType.Range, Size, MarketDataType.Last);
		
			CalculateOnBarClose	= false;
            Overlay				= true;
			PriceTypeSupported	= true;
			DrawOnPricePanel    = true;
			PaintPriceMarkers	= false;
		
		}
		
		/// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
        protected override void OnBarUpdate()
			
		{	
			
			if (CurrentBarArray[0] > 0 && CurrentBarArray[1] > 0 )	
        {
			if (BarsInProgress == 0) 
			
			{	
				
				
				
				if ((Indicator1 > X) && (Indicator2 > X))
					
				{
					
					BackColor = Color.MediumSeaGreen;
					
				}

[NinjaTrader_AdamP]

Tdschulz,

Are you passing the BarsArray[0] to the Indicator1 and Indicator2 methods?

Also, I should have noticed before, this line : Add(SecondInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);

You cannot access BarsPeriods in the initialize method.

This : Add(SecondInstrument, PeriodType.Range, Size, MarketDataType.Last);

Should work fine as long as SecondInstrument is defined.

I look forward to helping you resolve your issue.

[Tdschulz]

Thanks Adam. I found my mistake. I had forgotten "Value_" in front of Size.

public int Value_Size
        {
            get { return size; }
            set { size = value; }
        }

Thanks for your help.

[NinjaTrader_AdamP]

Tdschultz,

I am happy you have resolved your issue.

Please don't hesitate to contact us should you require additional assistance.