Setting an Indicator Variable from a Strategy

[spinalwiz]

Hi,

I was just wondering why this code doesn't work - I have the strategy and the indicator added to a chart. From the Print() statement I can tell the variable is getting set in the indicator, but the plot is just plotting 1's.

public class MyCustomStrategy : Strategy {
        #region Variables
            int myValue = 0;
        #endregion

        protected override void Initialize(){
            CalculateOnBarClose = true;
        }

        protected override void OnBarUpdate(){
            myValue++;
            MyCustomIndicator().TestValue = myValue;
            if(myValue == 10)
                myValue = 0;    
        }
    }
}

public class MyCustomIndicator : Indicator
    {
        #region Variables
            private int testValue = 0;
        #endregion

        protected override void Initialize() {
            Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Line, "Plot0"));
            CalculateOnBarClose    = true;
        }

        protected override void OnBarUpdate() {
              Print(testValue);    
            Values[0].Set(testValue);
        }

        #region Properties
        public int TestValue {
            get { return testValue; }
            set { testValue = Math.Max(1, value); }
        }

[NinjaTrader_Bertrand]

Hi spinalwiz,

Please take a look at your indicator region properties and use this snippet:

[SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]public [/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2] TestValue[/SIZE]
[SIZE=2]{[/SIZE]
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]get[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2] { [/SIZE][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]return[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2] testValue; }[/SIZE]
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]set[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2] { testValue = Math.Max([/SIZE][/SIZE][SIZE=2][SIZE=2][SIZE=2][COLOR=red]0[/COLOR][/SIZE][/SIZE][/SIZE][SIZE=2][SIZE=2], value); }[/SIZE]
[SIZE=2]}[/SIZE]
[/SIZE]

Tested this briefly on my end and it correctly plots a '0' on the chart.

[spinalwiz]

Hi Bertrand,

Good spot, although I dont think I explained myself very well. Ignoring the rest of the code, this is the part I can't get to work:

In the Strategy:

MyCustomIndicator().TestValue = 5;

And in my Indicator:

Values[0].Set(testValue);

But it just plots 0s for some reason. The strange part is that if I add to the indicator:

Print(testValue);

Then in the output window it prints:

0
5
0
5
0
5
0
5

This is the code I have in Properties:

        public int TestValue {
            get { return testValue; }
            set { testValue = Math.Max(0, value); }
        }

[NinjaTrader_Bertrand]

Hi spinalwiz,

Thanks, please take a look then at the following reference sample - http://www.ninjatrader-support2.com/...ead.php?t=4991

You want to use a DataSeries class to have up-to-date values...

Have a great day!

[spinalwiz]

Hi,

Thank you for your reply. I am now using a DataSeries although it unfortunately still does not work. The example you gave was for getting an indicator variable from a strategy. I need to set an indicator variable from a strategy.

The code I have in my strategy is:

MyCustomIndicator().MyData.Set(5);    
MyCustomIndicator().Update();

And in my Indicator I have:

Values[0].Set(myData[0]);

My Properties section looks like this:

public DataSeries MyData
        {
            set { myData = value; }
            get { return myData; }
        }

[NinjaTrader_Bertrand]

Hi spinalwiz, unfortunately this is not supported.