Instrument for Theoretical Testing

[alizes]

I am trying to develop some indicator based on theoretical models.

For example, it would need to test the indicator on theoretical prices model like a waveform.
Example: Close[0] = Math.Sine(2*Math.PI * Phase[0] / Period)

Of course, I can create new DataSeries<T> to simulate this Price model inside the indicator script, but:
- I would still have a real Instrument panel (no use in this case)
- I could not separate the theoretical price window to the indicator window (different scales)
- I could not use this theoretical price model as an input for other indicators, except than doing the same new DataSeries<T> in each indicator script.

I am using NT8 RC1.

My question is:
does anyone have any suggestion if it's possible to create a "theoretical instrument" based on a formula (cf. above) that would be usable for any indicator and plottable in a separate panel than the indicator's ?

[NinjaTrader_JessicaP]

Hello alizes, and thank you for your question.

I would recommend making a new instrument via Tools -> Instruments -> add . The new instrument will have no volume or price information, and so any values that show up as y values will be coming from your indicator. You can then set up your candles and price marker so that they are transparent and invisible. I have included a video where I use the attached indicator on a chart, and a screen capture of my data series settings. I connected to the simulated datafeed with the fake instrument SINEWAVE to produce this chart. Please let us know if there are any other ways we can help.

http://screencast.com/t/IduxeD7BFVHa

[alizes]

Hello Jessica,

Thank you for the answer and the suggestions.

This is what I did too, but you improved the idea with the simulated data feed.
Thanks !

Actually, I will rebound on your suggestion by doing :
1) create the theoretical waveform indicator as you did in your example script
2) as I want to keep my CQG connection openned, I call an ES instrument, paint it transparent and put on the left scale axis (an empty instrument is optional)
3) I add the theoretical waveform indicator of step1 to visualize on the same panel (right axis)
4) when I want to test my new indicators based on the theoretical waveform price (my original post question), then I call the theoretical waveform indicator in the Input (instead of the ES instrument). Just as simple !
I've attached a snapshot for step 4 (RSI based on the theoretical waveform)

I'm taking the opportunity to thank all reps of NinjaTrader customer service here on this forum.
I wish many tips exchanged on this forum could be more populated in the tip forum section.