Adding BarSeries

[edward_bell]

How to add a BarSeries on a strategy the same with the primary BarSeries? For example, if I set the strategy to run on a Range chart on CL then I would like also the strategy itself a bar series that is a Range. If I set it to run on 2 Minute time frame then the strategy automatically add itself a Minute Bar Series with different period like 5.

[NinjaTrader_ChelseaB]

Hello edward_bell,

Thanks for your post.

You can get the bar type with BarsPeriod.Id and the interval with BarsPeriod.Value.

For example:

Add(Instrument.FullName, BarsPeriod.Id, BarsPeriod.Value+4);

On a 1 Minute ES 09-13 chart, this would add a secondary series of the ES 09-13 with 5 minute bars.

BarsPeriod.Id will return the bar type, such as minute or range. BarsPeriod.Value will return the interval (as an integer) to which you can add or subtract from.

Below is a link to the help guide on BarsPeriod.
http://www.ninjatrader.com/support/helpGuides/nt7/barsperiod.htm

[koganam]

Hello edward_bell,

Thanks for your post.

You can get the bar type with BarsPeriod.Id and the interval with BarsPeriod.Value.

For example:

Add(Instrument.FullName, BarsPeriod.Id, BarsPeriod.Value+4);

On a 1 Minute ES 09-13 chart, this would add a secondary series of the ES 09-13 with 5 minute bars.

BarsPeriod.Id will return the bar type, such as minute or range. BarsPeriod.Value will return the interval (as an integer) to which you can add or subtract from.

Below is a link to the help guide on BarsPeriod.
http://www.ninjatrader.com/support/helpGuides/nt7/barsperiod.htm

It cannot be done that way. The notes say that the property BarsPeriod "should NOT be accessed within the Initialize() method."

[NinjaTrader_ChelseaB]

koganam,

You are correct. The help guide does say not to use this in Initialize().

This code would be an unsupported method as there are some instances that can cause NinjaTrader to crash.

However, for what edward_bell is trying to accomplish this should work ok. (I did test this first btw)

Just to re-iterate this is unsupported. The only supported method would be to hard code the secondary series.

[edward_bell]

This method works but it makes Ninja to crash or doesn't good to any Dataseries. It will make the indicator so slow. Is there another way?

[NinjaTrader_ChelseaB]

Hello edward_bell,

The only other way would be to hard code the added dataseries and make multiple strategies for each instrument you are wanting to run this strategy over.

[edward_bell]

Can you please give me example on it?

[NinjaTrader_ChelseaB]

Hello edward_bell,

Below is an example of hard coding an added data series.
Add("ES 09-13", PeriodType.Minute, 10);

Also here is a link to the help guide on the Add() function.
http://www.ninjatrader.com/support/h...s/nt7/add3.htm

[edward_bell]

It is just the same with Add(Instrument.FullName, BarsPeriods[0].Id, 4);. It will will make the indicator too slow or even the chart will freeze.

[NinjaTrader_ChelseaB]

Hello,

This is the proper supported method of Adding a data series.

Is this in the Initialize() part of your script?

What is the days to load setting on your chart for the main data series?

Is there any other code in your script?

[edward_bell]

Yes I placed it on the Initialize() section of the code and the primary bar series is based on Days. I have put 3 bar series and the chart will freeze or even adding only 1.

[edward_bell]

Is there a way to know if the Bar Type supports multi bar series?

[NinjaTrader_ChelseaB]

Hello,

What is the days to load setting on your chart for the main data series?

What interval is the secondary series? (e.g. 3 Range)

[edward_bell]

I have attached an image on it so that you can see it clearly.

I am using 800 Ticks.

[NinjaTrader_ChelseaB]

Hello edward_bell,

This means that you must download 30 days of tick data for this instrument.

On my machine this takes approximately 38 seconds. Is this taking much longer for you?

Also, I am confused. You mentioned in post #11 that you have a Day interval for the primary data series on the chart.

Have you changed this?