Syntax

Public function PrabolicSAR(ByVal Data As Database, ByVal HighPrice As Field, ByVal LowPrice As Field, Optional MinAF As Double, Optional MaxAF As Double, Optional FieldName As String) As RecordSet

Overview

The Parabolic SAR is always in the market (whenever a position is closed, an opposing position is taken).

Interpretation

The Parabolic SAR indicator is most often used to set trailing price stops. A stop and reversal (SAR) occur when the price penetrates a Parabolic SAR level.

Class: Oscillator

Properties

Sample

 Public Sub main()

        'Variables

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

        Dim DB As New VTLGeneral.Database()

        Dim rsOHLCV As New VTLGeneral.RecordSet()

        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)
 

        'PrabolicSAR

        Dim _indRecord As New VTLGeneral.RecordSet()

        Dim osc As New VTLGeneral.Oscillator()

        _indRecord = osc.ParabolicSAR(DB,m_High,m_Low,0.02,0.2)
 

        For i = 0 To DB.getRecordCount-1

                output = output  &  CSTR(_indRecord.getValue(_indRecord.getName(1), i) ) & vbcrlf

        Next
 

        GUI.MsgDialog(output)

 

End Sub

 
 

See Also

• Williams’ Accumulation/Distribution
• Aroon
• DirectionalMovementSystem

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