How to program a compound instrument (pair trade)

[aomega]

Hi,

How would I go about programming a strategy based on the ratio between two instruments. e.g.:

SPY/AA

Ideally, the strategy should be able to plot SPY/AA bars, but failing that, it could just plot them as though it were an indicator.

I would then like to run standard indicators on the instruments (e.g. RSI, SMA).

I tried capturing the ratio in a data series and then using Add(RSI(ratio, ...)) on the data series but the indicators were plotted using the first instrument in the strategy.

Kind regards

[NinjaTrader_JoshP]

aomega,

Strategies only plot the primary instrument. Secondary instruments are "hidden" or running in the background.

For more information on multi-series strategies please see this article: http://www.ninjatrader-support.com/H...struments.html

[aomega]

Thank you. I know how to add multiple bar series to the strategy, I want to know how to make a bar or data series that's made out of the ratio between two instruments.

Since I can't add a graph for it, it should be sufficient to make a data series that's derived from the two bar instruments. e.g. the members of the series would be Instrument1 divided by Instrument2. I can do this.

I'd like to plot that data series and also run indicators on it, such as RSI, SMA etc. and plot those. I can't do this.

Kind regards

[NinjaTrader_JoshP]

You can only plot on the primary series. This is a reference sample of plotting from other series that is provided as-is. It has its limitations. http://www.ninjatrader-support2.com/...ead.php?t=6651

To make a DataSeries, please see the Help Guide article on how to set those up. Then it is just a matter of running your ratio calculations and setting the DataSeries to take those on.

Running indicators on the DataSeries is no problem. For example:

SMA(myDataSeries, 20)[0];

[Pannoowau]

this explanation is good.... but nee much more...

__________________
Compound Interest Formula

[NinjaTrader_Austin]

Pannoowau, what else would you like explained? You could always create a new thread if you feel the need.