Help with use of Indicator that is applied to A different Series

[xmess777]

Hello:

I am trying to create a strategy that uses the ZigZag indicator in a different data series. I did have succes creating a strat that works with no issues when having the indicator utilize the current data series, but when I try to code it so that the ZigZaig indicator uses a different series, I am getting an error. The issue is when the strat attempts to grab the indicators hi/lo bar value an error is generated indicating that there is no object referenced.

Here is an example of the code. It contains the setup and I point out the line where the error occurs. Any help is greatly appreciated.

private ZigZag zzTest;  //Instantiate the variable zzTest
private struct zzposclr { public int clr; public int bar; }   //Create a structure type

if (State == State.SetDefaults){
  //BLAH
  //BLAH
} else if (State == State.Configure) {
    AddDataSeries(BarsPeriodType.Minute, 5); //Add series
    ZigZag(BarsArray[1],DeviationType.Points, 0.5, false); //setup zigzag inputs and use it on series BarsArray[1]
}

protected override void OnBarUpdate() {
    if(State == State.Historical) return;
    if (CurrentBars[0] < 1) return;

    if(BarsInProgress!=1) return;    //Only interested in dealing with series1 (5 Min TF)        

    zzT(); //Call Function
}


private int zzT() {

    int cnt = 0; // setup counter to 0

   /Instantiate peakx[] structured
  //initial size doesn't matter, this will be resized in loop below
   zzposclr[] peakx = new zzposclr[1];  

    for (int i = 1; i < 13; i++) // 13 bars is more than enuf.
    {
        //Get the corresponding bar values for any HIbar/LowBar results from ZigZag
       // THE ERROR HAPPENS AT FOLLOWING LINE//
       // COMPILER INDICATE THAT THERE'S NO OBJECT REFERENCED
        int hZZ = zzTest.HighBar(0, i, 100);  //<<===ERROR HERE
        int lZZ = zzTest.LowBar(0, i, 100);

        //Populate structured peakx[] elements values.  
        //1st resize peakx[]
        //2ns set Hi/Lo Peak # of Bars to peakx[].bar
        //3rd set Color/Direction of bar  to peakx[].clr  Long/Short (OP_BUY/OP_SELL);                
        if (hZZ != -1) { Array.Resize(ref peakx, cnt+1); peakx[cnt].clr=OP_BUY; peakx[cnt].bar=hZZ; cnt++; }
        if (lZZ != -1) { Array.Resize(ref peakx, cnt+1); peakx[cnt].clr=OP_SELL; peakx[cnt].bar=lZZ; cnt++; }
    }

    //Sort the struct array so we get the correct order sequence
   //of bars that represent the LAST FOUR PEAKS/VALLEYS
    Array.Sort<zzposclr>(peakx, (a,b) => a.bar.CompareTo(b.bar));                    

    //The result is a struct array that contains the last 4 ZZ peaks/valley  
     //peakx[x].bar  <== the # of bar of peak/valley stored here
    //peakx[x].clr     <== corresponding color/directiom stored here.  OP_BUY=Green  OP_SELL=RED    
    //where x= 0 to 3.  The size of peakx[] is larger but we only need 4 items.          
}            

​

Jess

[xmess777]

NEVERMIND!!!!!! My error was not setting the variable zzTest to the ZigZag() indicator setup.

so
ZigZag(BarsArray[1],DeviationType.Points, 0.5, false);

Needs to be:

zzTest=ZigZag(BarsArray[1],DeviationType.Points, 0.5, false);


Function now works to the T !!!.


Hope other can benefit from this code.

Take care all,
Jess