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Date/Time: Tue, 22 Apr 2025 05:37:25 +0000

How to Post a Message for Support

Post From: Donchian Channel

[2023-02-24 18:40:31]
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User509820 - Posts: 69
Found it, what exactly would I need to change to get it to perform this way indicated.


SCSFExport scsf_DonchianChannel(SCStudyInterfaceRef sc)
{
  SCSubgraphRef Subgraph_HighestHigh = sc.Subgraph[0];
  SCSubgraphRef Subgraph_LowestLow = sc.Subgraph[1];
  SCSubgraphRef Subgraph_Midline = sc.Subgraph[2];
  SCInputRef Input_Length = sc.Input[3];
  SCInputRef Input_UseClose = sc.Input[4];

  if (sc.SetDefaults)
  {
    sc.GraphName = "Donchian Channel";

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

    Subgraph_HighestHigh.Name= "Highest High";
    Subgraph_HighestHigh.DrawStyle= DRAWSTYLE_LINE;
    Subgraph_HighestHigh.DrawZeros= true;
    Subgraph_HighestHigh.GraphicalDisplacement= 1;

    Subgraph_LowestLow.Name = "Lowest Low";
    Subgraph_LowestLow.DrawStyle= DRAWSTYLE_LINE;
    Subgraph_LowestLow.DrawZeros= true;
    Subgraph_LowestLow.GraphicalDisplacement= 1;

    Subgraph_Midline.Name = "Mid Line";
    Subgraph_Midline.DrawStyle= DRAWSTYLE_LINE;
    Subgraph_Midline.LineStyle= LINESTYLE_DOT;
    Subgraph_Midline.DrawZeros= true;
    Subgraph_Midline.GraphicalDisplacement= 1;

    Input_Length.Name = "Length ";
    Input_Length.SetInt(5);
    Input_Length.SetIntLimits(1, MAX_STUDY_LENGTH);

    Input_UseClose.Name = "Use Close instead of High and Low";
    Input_UseClose.SetYesNo(false);

    return;
  }

  float Lowest = FLT_MAX;
  float Highest = -FLT_MAX;

  if (Input_UseClose.GetYesNo())
  {
    for (int BarIndex = sc.Index - (Input_Length.GetInt() - 1); BarIndex <= sc.Index; BarIndex++)
    {
      Highest = (Highest < sc.Close[BarIndex]) ? sc.Close[BarIndex] : Highest;

      Lowest = (Lowest > sc.Close[BarIndex]) ? sc.Close[BarIndex] : Lowest;
    }
  }
  else
  {
    for (int BarIndex = sc.Index - (Input_Length.GetInt() - 1); BarIndex <= sc.Index; BarIndex++)
    {
      if (Highest < sc.High[BarIndex])
        Highest = sc.High[BarIndex];

      if (Lowest > sc.Low[BarIndex])
        Lowest = sc.Low[BarIndex];
    }

  }

  Subgraph_HighestHigh[sc.Index] = Highest;
  Subgraph_LowestLow[sc.Index] = Lowest;
  Subgraph_Midline[sc.Index] = (Highest + Lowest)/2.0f;
}