Plotting the spread with a strategy: nothing happens

[skynetman]

I want to chart the spread between two instruments.

I'm using sampleStrategyPlot and SampleMultiInstrument as reference to build my spread indicator but it stays blank in charts.

It seems like StrategyPlot(0).Value.Set does nothing...
Things i do:
1)I open a chart for ES 06-09 and add StrategyPlot(0) as indicator (i tried also without addind the indicator but nothig happens again).
2) i start my strategy on ES 06-09, inside my strategy i add ES 09-09.
Nothing happens!

Here the code...

        protected override void Initialize()
        {
            CalculateOnBarClose = true;
            Add("ES 09-09", PeriodType.Minute, 1);
            Add(StrategyPlot(0));
            StrategyPlot(0).Plots[0].Pen.Color = Color.Blue;
            StrategyPlot(0).PanelUI = 2;
        }


        protected override void OnBarUpdate()
        {
            if (BarsInProgress != 0)
                return;
            StrategyPlot(0).Value.Set(Closes[1][0]-Closes[0][0]);
            
            // StrategyPlot(0).Value.Set(1); //NOT WORKING EITHER!
            
        }

Any idea?
I even tried the simple StrategyPlot(0).Value.Set(1)
or i tried to remove barsinprogress check

But nothing again!

[NinjaTrader_JoshP]

Adding StrategyPlot() onto a chart by itself for sure won't do anything. As far as your strategy goes, you need to print values out to see what they are instead of relying visually. Very likely you are trying to plot something completely outside of the y-axis price range of what is being charted. That is why you don't see anything.

[skynetman]

Hi josh.
I need and indicator BELOW price not on the same chart...
In fact i chose PanelUI = 2.
Isn't that enough?
Do you see any error in the code?

[NinjaTrader_JoshP]

Regardless of which panel you put it in you still need to debug via Print()s and not visually. Always check the Control Center for errors too.

[skynetman]

What could i debug in

StrategyPlot(0).Value.Set(1);

It should print a line!

[NinjaTrader_JoshP]

Print the values.

Print(StrategyPlot(0)[0].ToString());

[NinjaTrader_JoshP]

Also, remember your strategy won't even begin unless you have at least 20 bars of data for ALL instruments. Please check your secondary instrument. 09-09 expiry?

[skynetman]

Thx josh i did not know how to do that
Output windows is ok even with (Closes[1][0]-Closes[0][0])

It prints correctly the spreads..

2,2
2,17
2,03
2,18
2,08000000000001
2,16

etc.
What could it be then?

[NinjaTrader_JoshP]

You need to print the StrategyPlot value after you have set it. Not only the math logic. http://www.ninjatrader-support2.com/...ead.php?t=3418

[skynetman]

I used your code!

The numbers i reported are the result of:

StrategyPlot(0).Value.Set((Closes[1][0])-Closes[0][0]);
Print(StrategyPlot(0)[0].ToString());

I can't understand why i do not see anything...

[NinjaTrader_JoshP]

Please ensure you have enough data points for it to start plotting on all instruments. Again, please check the 09-09 because that looks fishy. Try with a different instrument.

[skynetman]

Yes i checked.
I also tried with CL 04-09 and CL 05-09
Any other idea?
Should i add StrategyPlot(0) to chart before running the strategy or after or it does not matter? i tried both...

[NinjaTrader_JoshP]

No, you should not manually add StrategyPlot() at all. Please remove it and try just running the strategy by itself.

[skynetman]

nothing happens....
what should i see?

[NinjaTrader_JoshP]

Please stop using your strategy and just use the reference sample. If that does not plot for you then for sure your strategy won't work.