Syntax

Public function SpeedResistanceLines(ByRef Data As Database, ByRef OHLCV As RecordSet, ByVal StartPeriod As Integer, ByVal EndPeriod As Integer) As RecordSet

Overview

Speed Resistance Lines (or 1/3 – 2/3 fan lines) is a group of trendlines that divide a price change into three equal partitions.

Interpretation

The degree of slope for each trendline differs slightly. Prices are usually expected to have support and resistance near these trendlines.

Note

The TA SpeedResistanceLines function is different from other TA functions.
The function returns a Recordset object, however, the returned values are present only between the start and end periods of the calculation as specified in the function arguments. All other values in the returned Recordset object will equal to zero (0).

Class: LineStudy

Parameters

Sample

 Public Sub main()

        'Variables

        Dim _symbolInfo As VTLGeneral.CSymbol=ClientCode.GetSymbolByName("GOLD")

        Dim DB As New VTLGeneral.Database()

        Dim RecordCount As Integer

        Dim m_Recordset As VTLGeneral.RecordSet

        Dim _historyData As object()

        Dim output As String

        Dim Record As Integer

        Dim m_Date As VTLGeneral.Field

        Dim m_Open As VTLGeneral.Field

        Dim m_High As VTLGeneral.Field

        Dim m_Low As VTLGeneral.Field

        Dim m_Close As VTLGeneral.Field

        Dim j As Integer = 0

        Dim i As Integer = 0

        Dim _recordCount As Integer =ClientCode.Bars(_symbolInfo.ID,VTLGeneral.ENUM_PERIOD.Day)
        

        m_Recordset = DB.CreateRecord

        m_Open = New VTLGeneral.Field

        m_High = New VTLGeneral.Field

        m_Low = New VTLGeneral.Field

        m_Close = New VTLGeneral.Field
 

        DB.RecordCount = _recordCount

        RecordCount = _recordCount
 

        'Initialize Recordsets

        m_Open.initialize(_recordCount-1, "Open")

        m_High.initialize(_recordCount-1, "High")

        m_Low.initialize(_recordCount-1, "Low")

        m_Close.initialize(_recordCount-1, "Close")


        'load high, low ,open and data

         _historyData = ClientCode.GetChartHistory(_symbolInfo.ID, VTLGeneral.ENUM_PERIOD.Day,VTLGeneral.ENUM_HISTORY_TYPE.HIS_HIGH, _recordCount)
 

         For i  = 0 To _recordCount-1

                m_High.setValue(i,_historyData(i))

         Next
 

        _historyData = ClientCode.GetChartHistory(_symbolInfo.ID, VTLGeneral.ENUM_PERIOD.Day,VTLGeneral.ENUM_HISTORY_TYPE.HIS_LOW, _recordCount)
 

        For i  = 0 To _recordCount-1

                m_Low.setValue(i,_historyData(i))

        Next 


        _historyData = ClientCode.GetChartHistory(_symbolInfo.ID, VTLGeneral.ENUM_PERIOD.Day,VTLGeneral.ENUM_HISTORY_TYPE.HIS_OPEN, _recordCount)
 

        For i  = 0 To _recordCount-1

                m_Open.setValue(i,_historyData(i))

        Next 


        _historyData = ClientCode.GetChartHistory(_symbolInfo.ID, VTLGeneral.ENUM_PERIOD.Day,VTLGeneral.ENUM_HISTORY_TYPE.HIS_CLOSE, _recordCount)
 

        For i  = 0 To _recordCount-1

                m_Close.setValue(i,_historyData(i))

        Next 
 

        m_Recordset.addField(m_Open)

        m_Recordset.addField(m_High)

        m_Recordset.addField(m_Low)

        m_Recordset.addField(m_Close)
 

        'SpeedResistanceLines indicator

        Dim _indRecord As New  VTLGeneral.RecordSet()

        Dim ls As New VTLGeneral.LineStudy()

        _indRecord = ls.SpeedResistanceLines(DB,m_Recordset,9,30)
 

        For i = 0 To DB.getRecordCount-1

                output = output  &  CSTR(_indRecord.getValue("SpeedResistanceLineMedian", i) ) & vbcrlf

        Next
 

        GUI.MsgDialog(output)

 

End Sub

 
 

See Also

• Tirone Levels
• Fibonacci Time Zones
• Quadrant Lines

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