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SCSFExport scsf_DynamicHHLL(SCStudyInterfaceRef sc)
{

  SCSubgraphRef Subgraph_HH = sc.Subgraph[0];
  SCSubgraphRef Subgraph_LL = sc.Subgraph[1];

  SCInputRef Input_Study1 = sc.Input[0];
  SCInputRef Input_Study1Subgraph = sc.Input[1];

  SCInputRef Input_Lookback = sc.Input[4];
  SCInputRef Input_LookbackSubgraph = sc.Input[5];

  // Set configuration variables
  
  if (sc.SetDefaults)
  {
    // Set the configuration and defaults
    
    sc.GraphName = "DynHHLL v 0.05";
    sc.GraphRegion = 4;
    
    // Set the Length input and default it to 30
Input_Lookback.Name = "Input Study to determine Lookback Range";
    Input_Lookback.SetStudyID(100);
    
    Input_LookbackSubgraph.Name = "Lookback Study Subgraph";
    Input_LookbackSubgraph.SetSubgraphIndex(0);

    Subgraph_HH.Name = "DynHighestHigh";
    Subgraph_HH.DrawStyle = DRAWSTYLE_LINE;
    Subgraph_HH.PrimaryColor = RGB(0,255,0);

    Subgraph_LL.Name = "DynLowestLow";
    Subgraph_LL.DrawStyle = DRAWSTYLE_LINE;
    Subgraph_LL.PrimaryColor = RGB(0,255,255);

    Input_Study1.Name = "Input Study 1";
    Input_Study1.SetStudyID(11);

    Input_Study1Subgraph.Name = "Study 1 Subgraph";
    Input_Study1Subgraph.SetSubgraphIndex(0);


    sc.AutoLoop = 1;
    
    return;
  }
  
  
if(sc.ArraySize<50) return;

  // Get the subgraph specified with the Study 1
  // Subgraph input from the study specified with
  // the Input Study 1 input.
  SCFloatArray Study1Array;
  sc.GetStudyArrayUsingID(Input_Study1.GetStudyID(),Input_Study1Subgraph.GetSubgraphIndex(),Study1Array);

  SCFloatArray LookbackStudyArray;
  sc.GetStudyArrayUsingID(Input_Lookback.GetStudyID(),Input_LookbackSubgraph.GetSubgraphIndex(),LookbackStudyArray);


  int lookback = static_cast<int>(LookbackStudyArray[sc.Index]);
  int total =0;
  float RefStudyCurrentValue = 0.0;
  SCString DebugString;

  int& r_LastLookback = sc.GetPersistentInt(1);

  //ensure lookback is positive at all times
  if (lookback <= 0){
   lookback = 1;
   r_LastLookback = 1;
  }else if(r_LastLookback <= 0){
   lookback = 5;
   r_LastLookback = 5;
  }else{
   r_LastLookback = lookback;
  }

  DebugString.Format("lookback == : %d", lookback);
  sc.AddMessageToLog(DebugString, 0);

  Subgraph_HH[sc.Index] =sc.GetHighest(Study1Array, lookback);
  Subgraph_LL[sc.Index] =sc.GetLowest(Study1Array, lookback);

  DebugString.Format("highest == : %f", sc.GetHighest(Study1Array, lookback));
  sc.AddMessageToLog(DebugString, 0);
  DebugString.Format("lowest == : %f", sc.GetLowest(Study1Array, lookback));
  sc.AddMessageToLog(DebugString, 0);

}