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CCI Divergence Indicator for Amibroker (AFL)
bodisaudi
over 13 years ago
Amibroker (AFL)

Rating:
3 / 5 (Votes 8)
Tags:
oscillator, amibroker

This is a divergence indicator for CCI

Author: Dennis Skoblar

Screenshots

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Indicator / Formula

Indicator
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_SECTION_BEGIN( "CCI Divergence Indicator" );
/*
  FileName: Mod - Osc-Price Divergence31
  October 25, 2005
  Version 1.0
  ====================================
  Use with MACD or Stochastics
  program detects and plots trendlines on oscillators
  generates price divergence data
  ====================================
  Program is built as an include module
  Program does not return anything. It plots the divergence area.
  The global variables below are available to controlling code
  ===============================================================
  - Modify divergence detection to account for continuation cases properly
  - Currently case #18 useed for continuation
*/

// Parameters needed to be defined before calling this module

Issue   = CCI( 20 );
Middle  = 0;

//Middle: MACD=0, Stoc=50, RSI=50

Div_Version = 32;
Pattern =  Diverge = "";

//Parameters
Trendlines     = Param( "Trendlines", 3, 0, 3, 1 );
TradeON        = Param( "TradeON", 1, 0, 1, 1 );
Diag_Trace     = Param( "Diag_Trace", 0, 0, 1, 1 );
Alerts         = Param( "Alerts", 0, 0, 1, 1 );

function ParameterSetup( Osc_Issue )
{
//Variables are defined here if they are assigned values in more than one location
    global Pattern, Diverge, PlotDiverge;
    global PlotOver1, PLotOver2, Line1, Line2;
    global Backtest, explore;
    global Sel_BarIndex, Sel_Osc_Issue;


    pattern        = "";
    diverge        = "";
    PlotDiverge    = 0;

    Plotover1 = Plotover2 = Line1 = Line2 = 0;

    Backtest       = Status( "action" ) == 5;
    Explore        = Status( "action" ) == 4;

    Sel_OscIssue        = IIf( TradeON == 1, LastValue( Osc_Issue ), SelectedValue( Osc_Issue ) );
    Sel_BarIndex        = IIf( TradeON == 1, LastValue( BarIndex() ), SelectedValue( BarIndex() ) );


// verify this segment
    if( Backtest == 1 )
    {
        TradeON = 0;
        Sel_OscIssue = Osc_Issue;
        Sel_BarIndex = BarIndex();

    }


} // end ParameterSetup





// ****************************************************************************************** //
//                                        Functions
//
//Determine Peaks  - Bearish Reversal
function DetectLastHigh( Osc_Issue )
{
    global LastHigh, LastHighBars, TurnDn_OK, Sel_TurnDn_OK;

    TurnDn_OK       = False;
    Sel_TurnDn_OK   = False;
    Def_Peak1       = 0;
    Def_Peak2       = 0;
    LastHigh        = 0;
    LastHighBars    = 0;

    Def_Peak1       = Osc_Issue < Ref( Osc_Issue, -1 ) AND Ref( Osc_Issue, -1 ) > Ref( Osc_Issue, -2 ) AND Osc_Issue < Ref( Osc_Issue, -2 );
    Def_Peak2       = Osc_Issue < Ref( Osc_Issue, -1 ) AND Ref( Osc_Issue, -1 ) < Ref( Osc_Issue, -2 ) AND Ref( Osc_Issue, -2 ) > Ref( Osc_Issue, -3 )
                      AND Osc_Issue < Ref( Osc_Issue, -3 );
    TurnDn_OK       = Def_Peak1 OR Def_Peak2;
    Sel_TurnDn_OK   = IIf( TradeON == 1, LastValue( TurnDn_OK ), SelectedValue( TurnDn_OK ) );


    HighBar1        = IIf( Def_Peak1 == 1, 1, 0 );
    HighBar2        = IIf( Def_Peak2 == 1, 1, 0 );
    HighBar         = IIf( HighBar1 == 1, 3, 4 );

    LastHigh        = HHV( Osc_Issue, HighBar );
    LastHighBars    = HHVBars( Osc_issue, HighBar );


    _TRACE( "Sel_TurnDn_OK "  + WriteVal( Sel_TurnDn_OK ) );

    if( Diag_Trace == 1 )
    {
        _TRACE( "Detect LastHigh - " + WriteVal( LastHigh, 1.2 ) + " Def Peak1 " + WriteVal( Def_Peak1, 1.0 )
                + " Def Peak2 " + WriteVal( Def_Peak2, 1.0 ) + "  TurnDn " + WriteVal( TurnDn_OK, 1.0 ) );
        _TRACE( "Detect LastHigh - Osc " + WriteVal( Osc_Issue, 1.2 ) +  "   Ref Osc -2 " + WriteVal( Ref( Osc_Issue, -2 ) )
                + "   Ref Osc -3 " + WriteVal( Ref( Osc_Issue, -3 ) ) );
    }

    return  Sel_TurnDn_OK;
} // end DetectLastHigh



function DetectBearishReversal( Osc_Issue, Middle )
{
    global SDiv_Code, BT_SDiv_Code, Bear_Diverge;

    SDiv_Code = BT_SDiv_Code = Bear_Diverge = 0;

    Sel_TurnDn_OK   = DetectLastHigh( Osc_Issue );
    _TRACE( "Bear Reversal - Enter Bear Diverge" );

    if( Sel_TurnDn_OK == 1 OR Backtest == 1 )
    {
//Find Current Peak
        FirstBar_CurrGroup   = BarsSince( Cross( Osc_Issue, Middle ) ) + 1;
        CurrPeak             = HHV( Osc_Issue, FirstBar_Currgroup );
        CurrPeakBars         = HHVBars( Osc_Issue, FirstBar_Currgroup ) + 0;
        Sel_CurrPeak         = IIf( TradeON == 1, LastValue( CurrPeak ), SelectedValue( CurrPeak ) );
        _TRACE( "Bear Reversal 02-0 - CPeak " + WriteVal( Sel_CurrPeak, 1.2 ) );

//Determine Prior Peak
//Distances computed relative to selected bar
        i = 0;
        _TRACE( "Bear Reversal 00 - start of loop  ------- " );

        do
        {
            i++;
            LastBar_PriorGroup       = Sel_BarIndex - ValueWhen( Cross( Middle, Osc_Issue ), BarIndex(), i );
            FirstBar_PriorGroup      = Sel_BarIndex - ValueWhen( Cross( Osc_Issue, Middle ), BarIndex(), i + 1 );

            Sel_LastBar_PG           = IIf( TradeON == 1, LastValue( LastBar_PriorGroup ), SelectedValue( LastBar_PriorGroup ) );
            Sel_FirstBar_PG          = IIf( TradeON == 1, LastValue( FirstBar_PriorGroup ), SelectedValue( FirstBar_PriorGroup ) );

//Lines below need the selected variable to function correctly
            Peak_PriorGroup          = Ref( HHV( Osc_Issue, Sel_FirstBar_PG - Sel_LastBar_PG + 1 ), -Sel_LastBar_PG + 1 );
            PeakBars_PriorGroup      = Ref( HHVBars( Osc_Issue, Sel_FirstBar_PG - Sel_LastBar_PG + 1 ), -Sel_LastBar_PG + 1 );

            Sel_LastBar_PriorGroup   = IIf( TradeON == 1, LastValue( LastBar_PriorGroup ), SelectedValue( LastBar_PriorGroup ) );
            Sel_PeakBars_PriorGroup  = IIf( TradeON == 1, LastValue( PeakBars_PriorGroup ), SelectedValue( PeakBars_PriorGroup ) );
            Sel_Peak_PriorGroup      = IIf( TradeON == 1, LastValue( Peak_PriorGroup ), SelectedValue( Peak_PriorGroup ) );

            Final_Bars               = Sel_PeakBars_PriorGroup + Sel_LastBar_PriorGroup;


// Diagnostic
            _TRACE( "Bear Reversal - loop 01  - i= " + WriteVal( i, 1.0 ) + " FB_PrGr " + WriteVal( Sel_FirstBar_PG, 1.0 ) + "  LB_PrGr " + WriteVal( Sel_LastBar_PG, 1.0 ) );
            _TRACE( "Bear Reversal - loop 02 - CPeak " + WriteVal( Sel_CurrPeak, 1.2 ) );
            _TRACE( "Bear Reversal - loop 03 - Pk_PG " + WriteVal( Sel_Peak_PriorGroup, 1.2 ) + " Pk_PGBars "  + WriteVal( Sel_PeakBars_PriorGroup, 1.0 ) + " F Bars " + WriteVal( Final_Bars ) );
            _TRACE( "Bear Reversal - loop 04 - While1= " + WriteVal( ( SelectedValue( Peak_PriorGroup ) - Middle ), 1.2 ) + "  Compare= " + WriteVal( ( ( SelectedValue( CurrPeak ) - Middle ) / 3 ), 1.2 ) );

        }
        while( ( ( Sel_Peak_PriorGroup - Middle ) < ( Sel_CurrPeak - Middle ) / 3 ) AND i < 10 );


        _TRACE( "Bear Reversal 05 - end of loop  ------- " );


        PriorPeak            = Peak_PriorGroup;
        PriorPeakBars        = Final_Bars;

        Sel_LastHigh       = IIf( TradeON == 1, LastValue( LastHigh ), SelectedValue( LastHigh ) );
        Sel_CurrPeak       = IIf( TradeON == 1, LastValue( CurrPeak ), SelectedValue( CurrPeak ) );
        Sel_PriorPeak      = IIf( TradeON == 1, LastValue( PriorPeak ), SelectedValue( PriorPeak ) );
        Sel_LastHighBars   = IIf( TradeON == 1, LastValue( LastHighBars ), SelectedValue( LastHighBars ) );
        Sel_CurrPeakBars   = IIf( TradeON == 1, LastValue( CurrPeakBars ), SelectedValue( CurrPeakBars ) );
        Sel_PriorPeakBars  = IIf( TradeON == 1, LastValue( PriorPeakBars ), SelectedValue( PriorPeakBars ) );

//Needed for Backtest Arrays
        SR1    = CurrPeak > PriorPeak AND LastHigh == CurrPeak;                         //Curr Peak Higher - Divergence not possible
        SR2    = CurrPeak < PriorPeak AND LastHigh == CurrPeak;                         //Curr Peak Lower
        SR3    = Osc_Issue > Middle AND CurrPeak > PriorPeak AND LastHigh < CurrPeak;   //Curr Peak Higher - Last High Lower
        SR4    = Osc_Issue > Middle AND CurrPeak < PriorPeak AND LastHigh < CurrPeak;   //Curr Peak Lower  - Best
        SR5    = LastHigh  < Middle   AND LastHigh < CurrPeak AND SR4 == 0 AND SR3 == 0; //Continuation signal with Osc_Issue < Middle


//Needed for display
        Sel_SR1    = IIf( TradeON == 1, LastValue( SR1 ), SelectedValue( SR1 ) );
        Sel_SR2    = IIf( TradeON == 1, LastValue( SR2 ), SelectedValue( SR2 ) );
        Sel_SR3    = IIf( TradeON == 1, LastValue( SR3 ), SelectedValue( SR3 ) );
        Sel_SR4    = IIf( TradeON == 1, LastValue( SR4 ), SelectedValue( SR4 ) );
        Sel_SR5    = IIf( TradeON == 1, LastValue( SR5 ), SelectedValue( SR5 ) );


//Determine Price Divergence
        if( Sel_SR1 == 1 )
        {
            Bear_Diverge = 0;
            SDiv_Code    = 11;
            Diverge      = "";
            Pattern      = "Higher High";
        }

        if( Sel_SR2 == 1 )
        {
            Curr_HighPrice     = HHV( High, 5 );
            Prior_PeakPrice    = Ref( HHV( High, 6 ), -( Sel_PriorPeakBars - 3 ) );
            Sel_CHighPrice     = IIf( TradeON == 1, LastValue( Curr_HighPrice ), SelectedValue( Curr_HighPrice ) );
            Sel_PPeakPrice     = IIf( TradeON == 1, LastValue( Prior_PeakPrice ), SelectedValue( Prior_PeakPrice ) );
            Sel_Bear_Diverge   = Sel_CHighPrice >= Sel_PPeakPrice;

            if( Sel_Bear_Diverge == 1 )
            {
                Bear_Diverge = 1;
                SDiv_Code    = 13;
                Diverge      = "Bearish";
                Pattern      = "Lower High";
            }
            else
            {
                Bear_Diverge = 0;
                SDiv_Code    = 12;
                Diverge      = "";
                Pattern      = "Lower High";
            }
        }


        if( Sel_SR3 == 1 )
        {
            _TRACE( "Bear Reversal - SR3 - True" );
            Curr_HighPrice   = HHV( High, 5 );
            Curr_PeakPrice   = Ref( HHV( High, 6 ), -( Sel_CurrPeakBars - 3 ) );
            Sel_CHighPrice   = IIf( TradeON == 1, LastValue( Curr_HighPrice ), SelectedValue( Curr_HighPrice ) );
            Sel_CPeakPrice   = IIf( TradeON == 1, LastValue( Curr_PeakPrice ), SelectedValue( Curr_PeakPrice ) );
            Sel_Bear_Diverge = Sel_CHighPrice >= Sel_CPeakPrice;


            if( Sel_Bear_Diverge == 1 )
            {
                Bear_Diverge = 1;
                SDiv_Code    = 15;
                Diverge      = "Bearish";
                Pattern      = "Higher High";
            }
            else
            {

                Bear_Diverge = 0;
                SDiv_Code    = 14;
                Diverge      = "";
                Pattern      = "Higher High";
            }
        }

        if( Sel_SR4 == 1 )
        {
            _TRACE( "Bear Reversal - SR4 - True" );
            Curr_HighPrice   = HHV( High, 5 );
            Curr_PeakPrice   = Ref( HHV( High, 6 ), -( Sel_CurrPeakBars - 3 ) );
            Sel_CHighPrice   = IIf( TradeON == 1, LastValue( Curr_HighPrice ), SelectedValue( Curr_HighPrice ) );
            Sel_CPeakPrice   = IIf( TradeON == 1, LastValue( Curr_PeakPrice ), SelectedValue( Curr_PeakPrice ) );
            Sel_Bear_Diverge = Sel_CHighPrice >= Sel_CPeakPrice;

            if( Sel_Bear_Diverge == 1 )
            {
                Bear_Diverge = 1;
                SDiv_Code    = 17;
                Diverge      = "Bearish";
                Pattern      = "Lower High";
            }
            else
            {
                Bear_Diverge = 0;
                SDiv_Code    = 16;
                Diverge      = "";
                Pattern      = "Lower High";
            }
        }  // end  Sel_Bear_Diverge




        if( Sel_SR5 == 1 )
        {
            Bear_Diverge = 0;
            SDiv_Code    = 18;
            Diverge      = "";
            Pattern      = "Continuation";
        }


        BT_SDiv_Code = IIf( SR1 == 1, 11,
                            IIf( SR2 == 1 AND Bear_Diverge == 0, 12, IIf( SR2 == 1 AND Bear_Diverge == 1, 13,
                                    IIf( SR3 == 1 AND Bear_Diverge == 0, 14, IIf( SR3 == 1 AND Bear_Diverge == 1, 15,
                                            IIf( SR4 == 1 AND Bear_Diverge == 0, 16, IIf( SR4 == 1 AND Bear_Diverge == 1, 17,
                                                    IIf( SR5 == 1 AND SR4 == 0 AND SR3 == 0, 18, 0 ) ) ) ) ) ) ) );

        if( Diag_trace )
        {
            _TRACE( "Bear Reversal #00 - Div_Code " + WriteVal( SDiv_Code, 1.0 ) + " --  SR1 " + WriteVal( Sel_SR1, 1.0 )
                    + " SR2 " + WriteVal( Sel_SR2, 1.0 ) + " SR3 " + WriteVal( Sel_SR3, 1.0 ) + " SR4 " + WriteVal( Sel_SR4, 1.0 ) );
            _TRACE( "Bear Reversal #00 - LastHigh " +  WriteVal( Sel_LastHigh, 1.2 ) + " CurrPeak " +  WriteVal( Sel_CurrPeak, 1.2 )
                    + " PriorPeak " +  WriteVal( Sel_PriorPeak, 1.2 ) );
        }

        if( Backtest == 0 )
        {
//Assign Values to coordinates
            y10 = Sel_CurrPeak;
            y11 = Sel_LastHigh;
            x10 = BarCount - 1 - Sel_CurrPeakBars - ( LastValue( BarIndex() ) - Sel_BarIndex );
            x11 = BarCount - 1 - Sel_LastHighBars - ( LastValue( BarIndex() ) - Sel_BarIndex );
            Line1  = LineArray( x10, y10, x11, y11, 0 );

            y20 = Sel_PriorPeak;
            y21 = Sel_CurrPeak;
            x20 = BarCount - 1 - SelectedValue( Final_Bars )  - ( LastValue( BarIndex() ) - Sel_BarIndex );
//x20=BarCount - 1 - Sel_PriorPeakBars  - (LastValue(BarIndex())- Sel_BarIndex);
            x21 = BarCount - 1 - Sel_CurrPeakBars   - ( LastValue( BarIndex() ) - Sel_BarIndex );
            Line2 = LineArray( x20, y20, x21, y21, 0 );

//Compute area to paint, based on MACD / Stochastic
            if( Middle == 50 )
            {
                Area_MaxValue = 100;
                PlotOver2 = IIf( BarIndex()  >= Sel_BarIndex  - ( x21 - x20 ) - ( x11 - x10 ) - 1 AND
                                 BarIndex() <= Sel_BarIndex  - ( x11 - x10 ), Area_MaxValue, 0 );
                PlotOver1 = IIf( BarIndex()  >= Sel_BarIndex  - ( x11 - x10 ) - 1 AND BarIndex() <= Sel_BarIndex, Area_MaxValue, 0 );


                if( SelectedValue( SDiv_Code ) == 15 )
                {
//Limit the blue bar for divergence to 2nd half of area for code 15
                    PlotDiverge = IIf( BarIndex() >= Sel_BarIndex - ( x11 - x10 ) - 1
                                       AND BarIndex() <= Sel_BarIndex AND Diverge == "Bearish", 10, 0 );
                }

                if( SelectedValue( SDiv_Code ) == 13 OR SelectedValue( SDiv_Code ) == 17 )
                {
                    PlotDiverge = IIf( BarIndex() >= Sel_BarIndex - ( x21 - x20 ) - ( x11 - x10 ) - 1
                                       AND BarIndex() <= Sel_BarIndex AND Diverge == "Bearish", 10, 0 );
                }

            }
            else
            {
                Area_MinValue = Max( y10, y20 );
                PlotOver2 = IIf( BarIndex()  >= Sel_BarIndex  - ( x21 - x20 ) - ( x11 - x10 ) - 1 AND
                                 BarIndex() <= Sel_BarIndex  - ( x11 - x10 ), Area_MinValue, 0 );
                PlotOver1 = IIf( BarIndex()  >= Sel_BarIndex  - ( x11 - x10 ) - 1 AND BarIndex() <= Sel_BarIndex, Area_MinValue, 0 );
            }

        } // end if backtest


        if( Diag_Trace == 1 )
        {
            _TRACE( "Bear Reversal #0 - Backtest " + WriteVal( Backtest, 1.0 ) );
            _TRACE( "Bear Reversal #1 - Sel_TurnDn_OK " + WriteVal( Sel_TurnDn_OK, 1.0 ) );
            _TRACE( "Bear Reversal #2 - CurrPeak " + WriteVal( Sel_CurrPeak, 1.2 ) + "  CPBars " + WriteVal( Sel_CurrPeakBars, 1.0 )
                    + "  DivCode  " + WriteVal( SDiv_Code, 1.0 ) );
            _TRACE( "Bear Reversal #3 - LB_PGroup " + WriteVal( Sel_LastBar_PG, 1.0 ) + "  FB_PGroup " + WriteVal( Sel_FirstBar_PG, 1.0 ) );
            _TRACE( "Bear Reversal #4 - Pk_PGroup " + WriteVal( PriorPeak, 1.2 ) + "  PB_PG " + WriteVal( PriorPeakBars, 1.0 ) );
            _TRACE( "Bear Reversal #5 - xy1: x10=" + WriteVal( x10, 1.0 ) + " y10=" + WriteVal( y10, 1.2 )
                    + "   x11=" + WriteVal( x11, 1.0 ) + " y11=" + WriteVal( y11, 1.2 ) );
            _TRACE( "Bear Reversal $6 - xy2: x20=" + WriteVal( x20, 1.0 ) + " y20=" + WriteVal( y20, 1.2 )
                    + "   x21=" + WriteVal( x21, 1.0 ) + " y21=" + WriteVal( y21, 1.2 ) );
            _TRACE( "Bear Reversal - end ================================================ " );

        } // end  Diag_Trace
    } // end  Sel_TurnDn_OK

//  Add code for troughs


    else
    {
        SDiv_Code    = 10;
    }

    return Sel_TurnDn_OK;
} //end DetectBearishReversal



//Determine Troughs
function DetectLastLow( Osc_Issue )
{
    global LastLow, LastLowBars, TurnUp_OK, Sel_TurnUp_OK;

    TurnUp_OK      = False;
    Sel_TurnUp_OK  = False;
    LastLow        = 0;
    LastLowBars    = 0;
    Def_Trough1    = 0;
    Def_Trough2    = 0;

    Def_Trough1    = Osc_Issue > Ref( Osc_Issue, -1 ) AND Ref( Osc_Issue, -1 ) < Ref( Osc_Issue, -2 ) AND Osc_Issue > Ref( Osc_Issue, -2 );
    Def_Trough2    = Osc_Issue > Ref( Osc_Issue, -1 ) AND Ref( Osc_Issue, -1 ) > Ref( Osc_Issue, -2 ) AND Ref( Osc_Issue, -2 ) < Ref( Osc_Issue, -3 )
                     AND Osc_Issue > Ref( Osc_Issue, -3 );

    TurnUp_OK      = Def_Trough1 OR Def_Trough2;
    Sel_TurnUp_OK  = IIf( TradeON == 1, LastValue( TurnUp_OK ), SelectedValue( TurnUp_OK ) );


    LowBar1        = IIf( Def_Trough1 == 1, 1, 0 );
    LowBar2        = IIf( Def_Trough2 == 1, 1, 0 );
    LowBar         = IIf( LowBar1 == 1, 3, 4 );

    LastLow        = LLV( Osc_Issue, LowBar );
    LastLowBars    = LLVBars( Osc_issue, LowBar );

    _TRACE( "Bull - LB1 " + WriteVal( LowBar1, 1.0 ) + "  LB2 " + WriteVal( LowBar2, 1.0 ) +  "  LB " + WriteVal( LowBar, 1.0 ) );



    if( Diag_Trace == 1 )
    {
        _TRACE( "DetectLastLow - LastLow " + WriteVal( LastLow, 1.2 ) + " Def Trough1 " + WriteVal( Def_Trough1, 1.0 )
                + " Def Trough2 " + WriteVal( Def_Trough2, 1.0 ) + "  TUp " + WriteVal( TurnUp_OK, 1.0 ) );
        _TRACE( "DetectLastLow - LastLow - Osc " + WriteVal( Osc_Issue, 1.2 ) +  "  Osc -1 " + WriteVal( Ref( Osc_Issue, -1 ), 1.2 )
                + "   Ref Osc -2 " + WriteVal( Ref( Osc_Issue, -2 ) ) + "   Ref Osc -3 " + WriteVal( Ref( Osc_Issue, -3 ) ) );
    }

    _TRACE( "Bear Code - end of Bear function " + WriteVal( SDiv_Code, 1.0 ) );
    return   Sel_TurnUp_OK;
}





function DetectBullishReversal( Osc_Issue, Middle )
{
    global  LDiv_Code, BT_LDiv_Code, BT_Code, Bull_Diverge;




    LDiv_Code = BT_LDiv_Code = 0;
    Bull_Diverge = 0;


    _TRACE( "Program Flow - Enter Detect Bullish Reversal - Bar Index " + WriteVal( BarIndex(), 1.0 ) +
            "  Last Bar  " + WriteVal( LastValue( BarIndex() ), 1.0 ) );

//Determine Trough for current period
    Sel_TurnUp_OK  = DetectLastLow( Osc_Issue );
    _TRACE( "Bull Code - Bull function Start " + Name() + "  TurnUp " + WriteVal( sel_TurnUp_OK, 1.0 ) + "  Code= " + WriteVal( LDiv_Code, 1.0 ) );


    if( Sel_TurnUp_OK == 1 OR Backtest == 1 )    // or 1==1 may be needed
    {
        FirstBar_CurrGroup    = BarsSince( Cross( Middle, Osc_Issue ) ) + 1;
        CurrTrough            = LLV( Osc_Issue, FirstBar_Currgroup );
        CurrTroughBars        = LLVBars( Osc_Issue, FirstBar_Currgroup ) + 0;
        Sel_CurrTrough        = IIf( TradeON == 1, LastValue( CurrTrough ), SelectedValue( CurrTrough ) );



//Distances computed relative to selected bar
        i = 0;
        _TRACE( "Bull Reversal 00 - start of loop  ------ " );

        do
        {
            i++;
            LastBar_PriorGroup         = Sel_BarIndex - ValueWhen( Cross( Osc_Issue, Middle ), BarIndex(), i );
            FirstBar_PriorGroup        = Sel_BarIndex - ValueWhen( Cross( Middle, Osc_Issue ), BarIndex(), i + 1 );

            Sel_LastBar_PG             = IIf( TradeON == 1, LastValue( LastBar_PriorGroup ), SelectedValue( LastBar_PriorGroup ) );
            Sel_FirstBar_PG            = IIf( TradeON == 1, LastValue( FirstBar_PriorGroup ), SelectedValue( FirstBar_PriorGroup ) );

//Find Trough using scalars - This may interfere with Backtest operation, but needed
            Trough_PriorGroup          = Ref( LLV( Osc_Issue, Sel_FirstBar_PG - Sel_LastBar_PG + 1 ), -Sel_LastBar_PG + 1 );
            TroughBars_PriorGroup      = Ref( LLVBars( Osc_Issue, Sel_FirstBar_PG - Sel_LastBar_PG + 1 ), -Sel_LastBar_PG + 1 );

            Sel_LastBar_PriorGroup     = IIf( TradeON == 1, LastValue( TroughBars_PriorGroup ), SelectedValue( TroughBars_PriorGroup ) );
            Sel_TroughBars_PriorGroup  = IIf( TradeON == 1, LastValue( LastBar_PriorGroup ), SelectedValue( LastBar_PriorGroup ) );
            Sel_Trough_PriorGroup      = IIf( TradeON == 1, LastValue( Trough_PriorGroup ), SelectedValue( Trough_PriorGroup ) );

            Final_Bars                 = Sel_TroughBars_PriorGroup + Sel_LastBar_PriorGroup - 1;

            if( Diag_Trace )
            {
                _TRACE( "Bull Reversal - loop 01 - i= " + WriteVal( i, 1.0 ) + " FB_PrGr " + WriteVal( FirstBar_PriorGroup, 1.0 )
                        + " / " + WriteVal( Sel_FirstBar_PG, 1.0 ) + "  LB_PrGr " + WriteVal( LastBar_PriorGroup, 1.0 )
                        + " / " + WriteVal( Sel_LastBar_PG, 1.0 ) );
                _TRACE( "Bull Reversal - loop 02 - Sel_FB_PrGr  " + WriteVal( Sel_FirstBar_PG, 1.0 ) + "   Sel_LB_PrGr " + WriteVal( Sel_LastBar_PG, 1.0 ) );
                _TRACE( "Bull Reversal - loop 03 - Tr_PG " + WriteVal( Trough_PriorGroup, 1.2 ) + " Tr_PGBars "  + WriteVal( TroughBars_PriorGroup, 1.0 ) + " F Bars " + WriteVal( Final_Bars, 1.0 ) );
                _TRACE( "Bull Reversal - loop 04 - While1= " + WriteVal( ( Middle - SelectedValue( Trough_PriorGroup ) ), 1.2 ) + "  Compare= " + WriteVal( ( ( Middle - SelectedValue( CurrTrough ) ) / 3 ), 1.2 ) );
            }

        }
        while( ( ( Middle - Sel_Trough_PriorGroup ) < ( Middle - Sel_CurrTrough ) / 3 ) AND i < 10 );


        PriorTrough          = Trough_PriorGroup;
        PriorTroughBars      = Final_Bars;


//Put Divergence codes into Array
//Compute results for display
        Sel_LastLow          = IIf( TradeON == 1, LastValue( LastLow ), SelectedValue( LastLow ) );
        Sel_CurrTrough       = IIf( TradeON == 1, LastValue( CurrTrough ), SelectedValue( CurrTrough ) );
        Sel_PriorTrough      = IIf( TradeON == 1, LastValue( PriorTrough ), SelectedValue( PriorTrough ) );
        Sel_LastLowBars      = IIf( TradeON == 1, LastValue( LastLowBars ), SelectedValue( LastLowBars ) );
        Sel_CurrTroughBars   = IIf( TradeON == 1, LastValue( CurrTroughBars ), SelectedValue( CurrTroughBars ) );
        Sel_PriorTroughBars  = IIf( TradeON == 1, LastValue( PriorTroughBars ), SelectedValue( PriorTroughBars ) );



//Needed for Backtest Arrays
        LR1    = CurrTrough < PriorTrough AND LastLow == CurrTrough;
        LR2    = CurrTrough > PriorTrough AND LastLow == CurrTrough;
        LR3    = Osc_Issue  < Middle AND CurrTrough < PriorTrough AND LastLow > CurrTrough;
        LR4    = Osc_Issue  < Middle AND CurrTrough > PriorTrough AND LastLow > CurrTrough;
        LR5    = LastLow    > Middle AND LastLow > CurrTrough AND LR3 == 0 AND LR4 == 0;



//Needed for display
        Sel_LR1    = IIf( TradeON == 1, LastValue( LR1 ), SelectedValue( LR1 ) );
        Sel_LR2    = IIf( TradeON == 1, LastValue( LR2 ), SelectedValue( LR2 ) );
        Sel_LR3    = IIf( TradeON == 1, LastValue( LR3 ), SelectedValue( LR3 ) );
        Sel_LR4    = IIf( TradeON == 1, LastValue( LR4 ), SelectedValue( LR4 ) );
        Sel_LR5    = IIf( TradeON == 1, LastValue( LR5 ), SelectedValue( LR5 ) );


//Determine Price Divergence
        if( Sel_LR1 == 1 )
        {
            Bull_Diverge = 0;
            LDiv_Code    = 11;
            Diverge      = "";
            Pattern      = "Lower Low";
        }

        if( Sel_LR2 == 1 )
        {
            Curr_LowPrice     = LLV( Low, 5 );
            Prior_LowPrice    = Ref( LLV( Low, 6 ), -( Sel_PriorTroughBars - 3 ) );
            Sel_CLowPrice     = IIf( TradeON == 1, LastValue( Curr_LowPrice ), SelectedValue( Curr_LowPrice ) );
            Sel_PLowPrice     = IIf( TradeON == 1, LastValue( Prior_LowPrice ), SelectedValue( Prior_LowPrice ) );
            Sel_Bull_Diverge  = Sel_CLowPrice <= Sel_PLowPrice;

            if( Sel_Bull_Diverge == 1 )
            {
                Bull_Diverge = 1;
                LDiv_Code    = 13;
                Diverge      = "Bullish";
                Pattern      = "Higher Low";
            }
            else
            {
                Bull_Diverge = 0;
                LDiv_Code    = 12;
                Diverge      = "";
                Pattern      = "Higher Low";
            }
        }

        if( Sel_LR3 == 1 )
        {
            Curr_LowPrice     = LLV( Low, 5 );
            CT_LowPrice       = Ref( LLV( Low, 6 ), -( Sel_CurrTroughBars - 3 ) );
            Sel_CLowPrice     = IIf( TradeON == 1, LastValue( Curr_LowPrice ), SelectedValue( Curr_LowPrice ) );
            Sel_CTroughPrice  = IIf( TradeON == 1, LastValue( CT_LowPrice ), SelectedValue( CT_LowPrice ) );
            Sel_Bull_Diverge  = Sel_CLowPrice <= Sel_CTroughPrice;

            if( Sel_Bull_Diverge == 1 )
            {
                Bull_Diverge = 1;
                LDiv_Code    = 15;
                Diverge      = "Bullish";
                Pattern      = "Lower Low";
            }
            else
            {
                Bull_Diverge = 0;
                LDiv_Code    = 14;
                Diverge      = "";
            }
        }


        if( Sel_LR4 == 1 )
        {
            Curr_LowPrice     = LLV( Low, 5 );
            CT_LowPrice       = Ref( LLV( Low, 6 ), -( Sel_CurrTroughBars - 3 ) );
            Sel_CLowPrice     = IIf( TradeON == 1, LastValue( Curr_LowPrice ), SelectedValue( Curr_LowPrice ) );
            Sel_CTroughPrice  = IIf( TradeON == 1, LastValue( CT_LowPrice ), SelectedValue( CT_LowPrice ) );
            Sel_Bull_Diverge  = Sel_CLowPrice <= Sel_CTroughPrice;

            if( Sel_Bull_Diverge == 1 )
            {
                Bull_Diverge = 1;
                LDiv_Code    = 17;
                Diverge      = "Bullish";
                Pattern      = "Higher Low";
            }
            else
            {
                Bull_Diverge = 0;
                LDiv_Code    = 16;
                Diverge      = "";
                Pattern      = "Higher Low";
            }
        }


        if( Sel_LR5 == 1 )
        {
            Bull_Diverge = 0;
            LDiv_Code    = 18;
            Diverge      = "";
        }

        BT_LDiv_Code = IIf( LR1 == 1, 11,
                            IIf( LR2 == 1 AND Bull_Diverge == 0, 12, IIf( LR2 == 1 AND Bull_Diverge == 1, 13,
                                    IIf( LR3 == 1 AND Bull_Diverge == 0, 14, IIf( LR3 == 1 AND Bull_Diverge == 1, 15,
                                            IIf( LR4 == 1 AND Bull_Diverge == 0, 16, IIf( LR4 == 1 AND Bull_Diverge == 1, 17,
                                                    IIf( LR5 == 1 AND LR4 == 0 AND LR3 == 0, 18, 0 ) ) ) ) ) ) ) );


        if( Diag_trace )
        {
            _TRACE( "Bull Reversal #00A - BT_Div_Code " + WriteVal( BT_LDiv_Code, 1.0 ) );

            _TRACE( "Bull Reversal #00B - Div_Code " + WriteVal( LDiv_Code, 1.0 ) + " --  LR1 " + WriteVal( LR1, 1.0 )
                    + " LR2 " + WriteVal( LR2, 1.0 ) + " LR3 " + WriteVal( LR3, 1.0 ) + " LR4 " + WriteVal( LR4, 1.0 ) );
            _TRACE( "Bull Reversal #00C - LastLow " +  WriteVal( Sel_LastLow, 1.2 ) + " CurrTrough " +  WriteVal( Sel_CurrTrough, 1.2 )
                    + " PriorTrough " +  WriteVal( Sel_PriorTrough, 1.2 ) );
        }

        if( Backtest == 0 )
        {
//Assign Values to coordinates
            y10 = Sel_CurrTrough;
            y11 = Sel_LastLow;
            x10 = BarCount - 1 - Sel_CurrTroughBars - ( LastValue( BarIndex() ) - Sel_BarIndex );
            x11 = BarCount - 1 - Sel_LastLowBars    - ( LastValue( BarIndex() ) - Sel_BarIndex );
            Line1  = LineArray( x10, y10, x11, y11, 0 );

            y20 = Sel_PriorTrough;
            y21 = Sel_CurrTrough;
            x20 = BarCount - 1 - SelectedValue( Final_Bars ) - ( LastValue( BarIndex() ) - Sel_BarIndex );
            x21 = BarCount - 1 - Sel_CurrTroughBars        - ( LastValue( BarIndex() ) - Sel_BarIndex );
            Line2 = LineArray( x20, y20, x21, y21, 0 );
//


//Find min value of oscillator in area of interest
            Area_MinValue = 0;
            Area_MaxValue = 0;

            if( Middle == 50 )
            {
                Area_MaxValue = 100;
                PlotOver2   = IIf( BarIndex() >= Sel_BarIndex  - ( x21 - x20 ) - ( x11 - x10 ) - 1 AND
                                   BarIndex() <= Sel_BarIndex - ( x11 - x10 ), Area_MaxValue, 0 );
                PlotOver1   = IIf( BarIndex() >= Sel_BarIndex - ( x11 - x10 ) - 1 AND
                                   BarIndex() <= Sel_BarIndex, Area_MaxValue, 0 );

                if( SelectedValue( LDiv_Code ) == 15 )
                {
//Limit the blue bar for divergence to 2nd half of area for code 15
                    PlotDiverge = IIf( BarIndex() >= Sel_BarIndex - ( x11 - x10 ) - 1
                                       AND BarIndex() <= Sel_BarIndex AND Diverge == "Bullish", 10, 0 );
                }

                if( SelectedValue( LDiv_Code ) == 13 OR SelectedValue( LDiv_Code ) == 17 )
                {
                    PlotDiverge = IIf( BarIndex() >= Sel_BarIndex - ( x21 - x20 ) - ( x11 - x10 ) - 1
                                       AND BarIndex() <= Sel_BarIndex AND Diverge == "Bullish", 10, 0 );
                }


            }
            else
            {
                Area_MinValue = Min( y10, y20 );
                PlotOver2 = IIf( BarIndex() >= Sel_BarIndex  - ( x21 - x20 ) - ( x11 - x10 ) - 1 AND
                                 BarIndex() <= Sel_BarIndex - ( x11 - x10 ) - 2, Area_MinValue, 0 );
                PlotOver1 = IIf( BarIndex() >= Sel_BarIndex - ( x11 - x10 ) - 1 AND
                                 BarIndex() <= Sel_BarIndex, Area_MinValue, 0 );
            }

            _TRACE( "Plot - Bull  #00C - PlotDiverge " + WriteVal( PlotDiverge, 1.0 ) );

        } // end if backtest


        if( Diag_Trace == 1 )
        {
            _TRACE( "Bull Reversal #0 - Backtest " + WriteVal( Backtest, 1.0 ) );
            _TRACE( "Bull Reversal #1 - DivCode: " + WriteVal( LDiv_Code, 1.0 ) + " LB DivCode " + WriteVal( LDiv_Code[BarCount - 1], 1.0 ) );
            _TRACE( "Bull Reversal #2  - Last Low  " + WriteVal( LastLow, 1.2 ) );
            _TRACE( "Bull Reversal #3 - Area_MinValue " + WriteVal( Area_MinValue, 1.2 ) );
            _TRACE( "Bull Reversal #4 - CurrTrough " + WriteVal( Sel_CurrTrough, 1.2 ) + "  LastLow " + WriteVal( Sel_LastLow, 1.2 ) );
            _TRACE( "Bull Reversal #5 - FBar_CT " + WriteVal( SelectedValue( FirstBar_CurrGroup ), 1.0 ) + " BCurrTrough " + WriteVal( CurrTroughBars, 1.0 ) );
            _TRACE( "Bull Reversal #6 - CurrTrough " + WriteVal( CurrTrough, 1.2 ) + "  CTBars " + WriteVal( CurrTroughBars, 1.0 ) );
            _TRACE( "Bull Reversal #7 - LB_PrGroup " + WriteVal( LastBar_PriorGroup, 1.0 ) + "  FB_PrGroup " + WriteVal( FirstBar_PriorGroup, 1.0 ) );
            _TRACE( "Bull Reversal #8 - Tr_PrGroup " + WriteVal( Trough_PriorGroup, 1.2 ) + "  TrB_PrG " + WriteVal( TroughBars_PriorGroup, 1.0 ) );
            _TRACE( "Bull Reversal #9 - PrTrough " + WriteVal( PriorTrough, 1.2 ) + "  PrTrBars " + WriteVal( PriorTroughBars, 1.0 ) );
            _TRACE( "Bull Reversal #10 - xy1: x10=" + WriteVal( x10, 1.0 ) + " y10=" + WriteVal( y10, 1.2 )
                    + "   x11=" + WriteVal( x11, 1.0 ) + " y11=" + WriteVal( y11, 1.2 ) );
            _TRACE( "Bull Reversal #11 - xy2: x20=" + WriteVal( x20, 1.0 ) + " y20=" + WriteVal( y20, 1.2 )
                    + "   x21=" + WriteVal( x21, 1.0 ) + " y21=" + WriteVal( y21, 1.2 ) );

            _TRACE( "Bull Reversal - end =========================================== " );

        } // end Diag_Trace
    } // end Sel_TurnUp_OK
    else
    {
        LDiv_Code    = 10;
    }

    return Sel_TurnUp_OK;
} // end function BullishReversal








function PlotTrendLines( PlotOver1, PlotOver2, BullBear )
{
//Plot Trendlines
    _TRACE( "Plot - Enter Module " );
    Line1Color   = IIf( BullBear == "Bullish", colorBlack, colorBrown );
    Line2Color   = IIf( BullBear == "Bullish", colorGreen, colorYellow );
    Area1Color   = IIf( BullBear == "Bullish", colorPaleGreen, colorLightYellow );
    Area2Color   = IIf( BullBear == "Bullish", colorAqua, colorLightOrange );


    if( Trendlines == 1 OR Trendlines == 3 )
    {
        Plot( Line1, "Trend line", Line1Color, styleDots | styleThick | styleNoLabel );
        Plot( Line2, "Trend line", Line2Color, styleDots | styleThick | styleNoLabel );
    }


    if( Trendlines >= 2 )
    {
        _TRACE( "Plot - PlotDiverge " + WriteVal( PlotDiverge, 1.0 ) );
        Plot( PlotDiverge, "", colorBlue, styleArea | styleNoLabel );
        Plot( Plotover1, "", Area1color, styleArea | styleNoLabel );
        Plot( Plotover2, "", Area2color, styleArea | styleNoLabel );
    } // end Trendlines

    _TRACE( "Plot - End Module " );
} // end PlotTrendlines


// ******************************************************************************************* //
//"Div - EndTime " + Now(2);

// START OF CONTROL SECTION
// Complete loop takes 7ms when no divergence is detected and 17 ms with divergence

function DivergeControl( Osc_Issue, Middle )
{
    Backtest = Status( "action" ) == 5;

//Declare Variable and set up parameters
    ParameterSetup( Osc_Issue );

//Process Bearish Reversal and Continuation
    RunStatus = Status( "action" );

    StartTime = Now( 4 );
    _TRACE( "Timer Start - " + WriteVal( StartTime, 1.0 ) );

    Sel_TurnDn_OK  = DetectBearishReversal( Osc_Issue, Middle );

    _TRACE( "Timer End - " + WriteVal( Now( 4 ), 1.0 ) + " Diff " + WriteVal( ( Now( 4 ) - StartTime ), 1.4 ) );
//_TRACE("Control Section - DivCode  " + WriteVal(SDiv_Code,1.0) + "  LB DivCode " +  WriteVal(SDiv_Code[BarCount-1],1.0));


    Sel_TurnUp_OK = DetectBullishReversal( Osc_Issue, Middle );

    if( Backtest == 0 AND( Sel_TurnDn_OK == 1 OR Sel_TurnUp_OK == 1 ) )
    {
        Bull_Bear = WriteIf( Sel_TurnDn_OK == 1, "Bearish", WriteIf( Sel_TurnUp_OK == 1, "Bullish", "" ) );
        PlotTrendlines( PlotOver1, PlotOver2, Bull_Bear );
    }




    _TRACE( "Control Section - end ==============================================================" );
    _TRACE( "Control Section - end ==============================================================" );


    if( Status( "action" ) == 1 AND Alerts == 1 )
    {
        _TRACE( "Alert section - Bull Code " + WriteVal( LDiv_Code, 1.0 ) + "  Bear Code " + WriteVal( SDiv_Code, 1.0 ) );
        AlertIf( LDiv_Code == 11, "Sound D:\\Amibroker\\Wav Files\\Lower Low.wav", "", 6, 12, 0 );
        AlertIf( ( LDiv_Code == 12 OR LDiv_Code == 13 OR LDiv_Code == 14 ) AND Bull_Diverge == 0, "Sound D:\\Amibroker\\Wav Files\\Higher Low.wav", "", 5, 12, 0 );
        AlertIf( ( LDiv_Code == 12 OR LDiv_Code == 13 OR LDiv_Code == 14 ) AND Bull_Diverge == 1, "Sound D:\\Amibroker\\Wav Files\\Bull Diverge.wav", "", 6, 12, 0 );
        AlertIf( SDiv_Code == 11, "Sound D:\\Amibroker\\Wav Files\\Higher High.wav", "", 6, 12, 0 );
        AlertIf( ( SDiv_Code == 12 OR SDiv_Code == 13 OR SDiv_Code == 14 ) AND Bear_Diverge == 0, "Sound D:\\Amibroker\\Wav Files\\Lower High.wav", "", 7, 12, 0 );
        AlertIf( ( SDiv_Code == 12 OR SDiv_Code == 13 OR SDiv_Code == 14 ) AND Bear_Diverge == 1, "Sound D:\\Amibroker\\Wav Files\\Bear Diverge.wav", "", 8, 12, 0 );
    }

    return Pattern + " - " + Diverge;
}  // end DivergeControl


Plot( CCI( 20 ), "CCI(20)", colorRed, styleLine );
divergeControl( Issue, Middle );
_SECTION_END();

2 comments

1. Pascal SAMSON
over 13 years ago

Thanks a lot. Divergence is one of the few weappons that traders have to predict the future.

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2. analystbank
almost 12 years ago

Seems to be a nice afl but on screen, just CCI appears, how to activate other things, as mentioned (in commentary) in the AFL to see divergence, with trendline on indicator

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