Passing IntDataSeries to Indicator

[borland]

I can't seem to pass a IntSeries Class from a Strategy to a Custom Indicator. Why is this. Is this a undocumented limitation?

myIntSeries = new IntSeries(this);

Even better would be to pass a BoolSeries Class.

Instead I seem to be limited to using a double with DataSeries Class. See attached files.

[NinjaTrader_ChelseaB]

Hello borland,

This depends on what you are trying to do.

The input series of an indicator can only be a dataseries. The primary data series of an indicator will always be a data series.

But you can make a property that is an int series and pass this in.

In the indicator #region Variables:
private IntSeries myIntSeries;

In the indicator #region Properties:
[Browsable(false)]
[XmlIgnore()]
public IntSeries IntSeriesInput
{
	get { return myIntSeries; }
}

In the strategy #region Variables:
private IntSeries myIntSeries;

In the strategy Initialize():
myIntSeries = new IntSeries(this);

In the Strategy where the indicator is called:
Print(IndicatorName(Input, myIntSeries)[0].ToString());

[borland]

What I want to do is to is to have the strategy evaluate a conditional statement as true or false and have the indicator plot the result for each bar. The indicator will plot a 1 value for true and -1 value for false.

My original code that passed a DataSeries seems to work until I add another BarsArray with the Add() function...that causes the NT7 to crash.

I tried your recommendations, but got bogged down with compile errors. It doesn't like the Add statement in the Strategy file.

Add(MyAlgoToolIndicator3(Input, myIntSeries));

How would I then set my plot values. Like this?

if (myIntSeries[0] == 1) 
 {
  Value.Set(1);
  PlotColors[0][0] = Color.LightGreen;
}
else
{
Value.Set(-1);
PlotColors[0][0] = Color.Red;
}

[NinjaTrader_ChelseaB]

Hello borland,

I understand you are trying to plot from a strategy.

You do not need to pass an int series to do this. You can set the the plot of an indicator directly.

IndicatorName(0).Value.Set(-1);

Below is a link to the nt reference sample that demonstrates this.
http://ninjatrader.com/support/forum...ead.php?t=6651

[borland]

Thanks ChelseaB,

Yes, besides setting the plot value from the Strategy, you can also change the plot color.

I got it working and no crashes after adding a second time series. I've attached my working NT7 files.

I don't understand in your referenced example, why they are sending a dummy argument (variable: id). The example implies they are using it to identify which plot, but that is not what's happening. Anyway, I can't seem to eliminate the dummy variable without compile errors. Any ideas?

[NinjaTrader_ChelseaB]

Hi borland,

The parameter for the indicator call is to keep the indicators separate. If the same indicator with the same parameters is called twice, NinjaTrader with cache this and only create one instance to save resources. (If the indicator is the same and the parameters are the same, then it should give the same values. No need to make a second instance.)

The indicator itself has a public property. You would need to remove the public property from the indicator to not have to use the parameter when calling the indicator.