Support Board

/*

The following study is to illustrate the problem I am having -

Basically I am showing an UP arrow below a bar n-1 when the next bar n goes above it, and a DOWN arrow
above a bar when the next bar goes below its low.
If the bar n also takes out the other side of the bar n-1, I want the arrows to be colored yellow.
This is not working consistently for all the bars. Looking at my code, once yellow color has been set on the bar,
I dont understand how its getting reset. */

SCSFExport scsf_TestLastDataColor(SCStudyInterfaceRef sc)
{
  SCSubgraphRef Subgraph_Down = sc.Subgraph[0];
  SCSubgraphRef Subgraph_Up = sc.Subgraph[1];
  

  if (sc.SetDefaults)
  {
    sc.GraphName = "Test Last DataColor";

    sc.AutoLoop = true;
    sc.GraphRegion = 0;
    sc.ValueFormat= VALUEFORMAT_INHERITED;
    
  

    Subgraph_Down.Name = "Down";
    Subgraph_Down.DrawStyle = DRAWSTYLE_ARROW_DOWN;
    Subgraph_Down.DrawZeros = false;
    Subgraph_Down.LineWidth = 1;

    Subgraph_Up.Name = "Up";
    Subgraph_Up.DrawStyle = DRAWSTYLE_ARROW_UP;
    Subgraph_Up.DrawZeros = false;
    Subgraph_Up.LineWidth = 1;
  
  

    return;
  }
  int n = sc.Index;
  bool UpTriggered, DownTriggered;
  
  UpTriggered = sc.High[n] > sc.High[n-1]; //Bar n has gone above prior bar n-1
  DownTriggered = sc.Low[n] < sc.Low[n-1]; //Bar n has gone below prior bar n-1
  
  
  
  if (UpTriggered )
  {
    
    //Only set it if it hasnt been set already
    if ( Subgraph_Up[n-1] ==0 )
    {
      
      Subgraph_Up[n-1] = sc.Low[n-1] - sc.TickSize;
      Subgraph_Up.DataColor[n-1] = RGB(0,200,255);
    }
  }
  else
    Subgraph_Up[n-1] = 0;
  
  if (DownTriggered )
  {
    //Only set it if it hasnt been set already
    if ( Subgraph_Down[n-1] ==0)
    {
    
    
      Subgraph_Down[n-1] = sc.High[n-1] + sc.TickSize;
      Subgraph_Down.DataColor[n-1] = COLOR_RED;
    }
  }
  else
    Subgraph_Down[n-1] = 0;
  
  
  //Bar n has gone above the prior bar and then below the prior bar
  //In this case, color the arrow Yellow.
  if (UpTriggered && sc.BaseData[SC_LAST][n] < sc.Low[n-1])
  {
    
    
    Subgraph_Up.DataColor[n-1] = COLOR_YELLOW;
    
    
  }
  
  //Bar n has gone below the prior bar and then above the prior bar
  //In this case, color the arrow Yellow.
  
  if (DownTriggered && sc.BaseData[SC_LAST][n] > sc.High[n-1] )
  {
  
    
    Subgraph_Down.DataColor[n-1] = COLOR_YELLOW;  
    
    
  }
  
}