Multi Series Programming

[Zeos6]

Hi,

Is there a way to programatically detect how many series are active on a chart, the instruments and their times and types? For example, suppose I create a chart with 5 min ES candlestick chart (primary series), a 1000V HiLo bar chart of ES, and a 500 Tick Box chart of NQ. Can I retieve this info programatically? Thanks for any suggestions.

[NinjaTrader_Joydeep]

Hello Zeos6,
Yes, you can do so using the unsupported ChartControl class.

ChartControl.BarsArray[0];  //returns the primary series
ChartControl.BarsArray[1];  //returns the secondary series

Unfortunately the ChartControl class is not officially supported and thus not documented.

[Zeos6]

Hi Joydeep,

Thank you. I am aware of those ChartControl objects. It provides more info than I need, but the chart type has to be obtained separately. I simply thought there might be a cleaner way to get this info.

However, is there any way to determine how many data series are present?

Thank you.

[NinjaTrader_Joydeep]

Hello Zeos6,
The below code will let you know the periodicity value of the chart

ChartControl.BarsArray[0].Period.Id 
ChartControl.BarsArray[0].Period.Value

http://www.ninjatrader.com/support/helpGuides/nt7/index.html?barsperiod.htm

ChartControl.BarsArray.Count will return you the total number of bar series.

[Zeos6]

Fantastic! That is exactly what I was looking for. Thank you very much. It is appreciated.

[Zeos6]

One more quickie, please. Is there a way to determine the chart style of each of those series? Thank you.

[NinjaTrader_Joydeep]

Hello Zeos6,
Please use the below code to determine the chart style

ChartControl.BarsArray[0].BarsData.ChartStyle

[Zeos6]

Once again, thank youi very much. Much appreciated.

[koganam]

One more quickie, please. Is there a way to determine the chart style of each of those series? Thank you.

ChartControl.ChartStyleType.ToString();

[Zeos6]

Hi koganam,

Thank you. I am aware of that code but that works only for the case of a single data series. I was looking to identify the style of each data series in a multi data series chart.

[Zeos6]

Hi Joydeep,

One additional issue came up for me. When you have a multi data series chart and add an indicator, say an EMA, you can add the indicator for each of the data series in the chart - there is an Input Data Series option in the indicator parameters.

1. Is there a way to create an Input Data Series input variable parameter for use in custom code so that the code will only run on that data series in a multi data series environment?

2. Give a data series in a multi data seies chart, is there a way to determine its BarrsArray[Index] value?

Any help would be greatly appreciated. Thank you.

[NinjaTrader_Joydeep]

Hello Zeos6,
1. You may try creating custom typeconverter however however I am not sure whether the indicator will work correctly with reference to the bars array other that the input series.

2. Can you please further clarify your query.

[Zeos6]

Hi Joydeep,

The issue is as follows:
Some of the indicators, for example EMA, allow you to specify the input series to be used with that indicator. How can I specify the input series to be used with a custom indicator and get the BarsArray index of that input series for use in a multi data series/mullti instrument chart?

Based on the EMA code it would appear that the Input series input indicator parameter is linked to the Value data series objects. Is that correct?

[NinjaTrader_Joydeep]

Hello Zeos6,
Yes, the input series is linked to the indicator parameters box by default.

You have to simply compare the bar periodicity/value and check it. I am not aware of any native property which returns the bar index value.

[Zeos6]

Thank you for the clarfication. Will work on this. Is there a way to determine what the Input series is stored as internally so that I can compare it to BarsArray[index]?