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Hi Tomasz Janeczko:
Is it possible to post the code here?
regards,
Shahariar
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx>
wrote:
>
> Hello,
>
> Automatic Trendline from Giorgos E. Siligardos TASC article were
written long time ago.
> See AmiBroker Members' Area.
> http://www.amibroker.com/members/traders/11-2006.html
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "shahariar4" <shahariar4@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Friday, February 27, 2009 8:38 PM
> Subject: [amibroker] Can anyone pls convert these Trendline codes
into AFL ?
>
>
> > HI!
> >
> > May be i am asking for too many things here..but as a newbie i am
> > getting many useful helps and insights from this great forum that
on
> > intervals i requestfor helps.
> >
> > Below are the tradestation and ensign codes of Autotrendline-one
of
> > the most talked about and witout any clear/good solution things
of
> > AFL world........it would hlep all the memebrs if any experts
could
> > convert any of the formulas into AFL;
> >
> >
> > Thanks,
> >
> >
> >
> > Tradestation code
> > ....................
> >
> > Indicator: Siligardos Autotrend
> > inputs:
> > Threshold( 30 ),
> > Lookback( 300 ) ;
> > variables:
> > TrendLineBuilt( false ),
> > PivotsFound( 0 ),
> > f( 0 ),
> > b( 0 ),
> > x( 0 ),
> > y( 0 ),
> > F1( 0 ),
> > F2( 0 ),
> > F3( 0 ),
> > PF1( 0 ),
> > PF2( 0 ),
> > PF3( 0 ) ;
> > arrays:
> > PivotArray[500]( 0 ),
> > PivotType[4]( 0 ),
> > PivotPosition[4]( 0 ),
> > SI[500]( 0 ) ;
> > if LastBarOnChart then
> > begin
> > for x = 1 to Lookback
> > begin
> > PivotArray[x] = 0 ;
> > end ;
> > F1 = 1 ;
> > F2 = F1 ;
> > PF1 = Close[F1] ;
> > PF2 = Close[F2] ;
> > {find the first move greater than threshold percent}
> > while ( 100 *AbsValue( PF1 - PF2 ) / MinList( PF1, PF2 )
> > < Threshold and ( F2 < Lookback ) )
> > begin
> > F2 = F2 + 1 ;
> > PF2 = Close[F2] ;
> > end ;
> > F3 = F2 ;
> > PF3 = Close[F3] ;
> > while F1 < Lookback
> > begin
> > while ( ( (100 * AbsValue( PF2 - PF3 )
> > / MinList( PF2, PF3 ) < Threshold )
> > or ( ( ( PF1 < PF2 ) and ( PF2 <= PF3 ) )
> > or ( ( PF1>PF2) and ( PF2 >= PF3 ) ) ) )
> > and ( F3 < Lookback ) )
> > begin
> > if ( ( ( PF1 < PF2 ) and ( PF2 <= PF3 ) )
> > or ( ( PF1 > PF2 ) and ( PF2 >= PF3 ) ) )
> > then
> > begin
> > F2 = F3 ;
> > PF2 = Close[F2] ;
> > end ;
> > F3 = F3 + 1 ;
> > PF3 = Close[F3] ;
> > end ;
> > if ( ( F3 = Lookback ) ) then
> > begin
> > F1 = F2 ;
> > F2 = F3 ;
> > PF1 = Close[F1] ;
> > PF2 = Close[F2] ;
> > end ;
> > if ( F2 > F1 ) then
> > begin
> > PivotArray[F2] = 1 ;
> > F1 = F2 ;
> > F2 = F3 ;
> > PF1 = Close[F1] ;
> > PF2 = Close[F2] ;
> > end ;
> > end ;
> > PivotArray[1] = 0 ;
> > PivotArray[Lookback] = 0 ;
> > end ;
> > if LastBarOnChart then
> > begin
> > x = 1 ;
> > y = 1 ;
> > while ( y < Lookback )
> > begin
> > y = y + 1 ;
> > if ( ( PivotArray[ y ] <> 0 )
> > or ( y = Lookback ) )
> > then
> > begin
> > b = ( Close[y] - Close[x] ) / ( y - x ) ;
> > for f = x to y
> > begin
> > SI[f] = ( b * ( f - x ) + Close[x] ) ;
> > end ;
> > x = y ;
> > end ;
> > end ;
> > F = 2 ;
> > {locate pivots}
> > PivotsFound = 0 ;
> > while ( ( F < Lookback - 2 ) and ( PivotsFound < 4 ) )
> > begin
> > if ( ( SI[f] <= SI[ f + 1 ] )
> > and ( SI[ f - 1 ] >= SI[f] ) )
> > then
> > begin
> > PivotsFound = PivotsFound + 1 ;
> > PivotType[ 5 - PivotsFound ] = + 1 ;
> > PivotPosition[ 5 - PivotsFound ] = F ;
> > end ;
> > if ( ( SI[f] >= SI[ f + 1 ] )
> > and (SI[ f - 1 ] <= SI[f] ) )
> > then
> > begin
> > PivotsFound = PivotsFound + 1 ;
> > PivotType[ 5 - PivotsFound ] = - 1 ;
> > PivotPosition[ 5 - PivotsFound ] = f ;
> > end ;
> > F = F + 1 ;
> > end ;
> > if ( PivotsFound = 4 ) then
> > begin
> > if ( PivotType[2] = 1 )
> > and ( PivotType[4] = 1 )
> > and ( Close[ PivotPosition[2] ]
> > < Close[ PivotPosition[4] ] )
> > and ( MaxList( Close[ PivotPosition[2] ],
> > Close[ PivotPosition[4] ] )
> > < MaxList( High[ PivotPosition[4] ],Close[0] ) )
> > then
> > begin
> > Value1 = TrendlineUp( Lookback,
> > PivotPosition[2],PivotPosition[4] ) ;
> > TrendlineBuilt = true ;
> > end
> > else if ( PivotType[2] = -1 )
> > and ( PivotType[4] = -1 )
> > and ( Close[ PivotPosition[2] ]
> >> Close[ PivotPosition[4] ] )
> > and ( MinList( Close[ PivotPosition[2] ],
> > Close[ PivotPosition[4] ] ) > MinList
> > ( Close[ PivotPosition[4] ], Close[0] ) )
> > then
> > begin
> > Value1 = TrendlineDown( Lookback,
> > PivotPosition[2], PivotPosition[4] );
> > TrendlineBuilt = true ;
> > end
> > else
> > Print( " Lookback trendline can be drawn,",
> > "Threshold = ", Threshold ) ;
> > end ;
> > if ( PivotsFound >= 3 ) and TrendLineBuilt = false then
> > begin
> > if ( PivotType[1] = 1 )
> > and ( PivotType[3] = 1 )
> > and ( Close[ PivotPosition[1] ] <
> > Close[ PivotPosition[3] ] )
> > and ( MaxList( Close[ PivotPosition[1] ],
> > Close[ PivotPosition[3] ] ) < MaxList(
> > Close[ PivotPosition[3] ], Close[0] ) )
> > then
> > Value1 = TrendlineUp( Lookback,
> > PivotPosition[1], PivotPosition[3] )
> > else if ( PivotType[1] = -1 )
> > and ( PivotType[3] = -1 )
> > and ( Close[PivotPosition[1] ] >
> > Close[ PivotPosition[3] ] )
> > and ( MinList( Close[ PivotPosition[1] ],
> > Close[ PivotPosition[3] ] ) > MinList(
> > Close[ PivotPosition[3] ], Close[0] ) )
> > then
> > Value1 = TrendlineDown( Lookback,
> > PivotPosition[1], PivotPosition[3] )
> > else
> > Print( "No trendline can be drawn,",
> > "Threshold = ", Threshold ) ;
> > end
> > else
> > Print( "No trendline can be drawn,",
> > "Threshold = ", Threshold ) ;
> > if ( PivotsFound < 3 ) then
> > Print( "No Point Milestones Can Be Found,",
> > "Threshold = ", Threshold ) ;
> > end ;
> >
> >
> >
> >
> >
> > enSign code
> > ...........
> >
> > /***************************************
> > Provided By : eSignal (c) Copyright 2006
> > Description: Building Automatic Trendlines
> > by Giorgos E. Siligardos, PhD
> > Version 1.0 08/31/2006
> > Notes:
> > * Nov 2006 Issue of Stocks and Commodities Magazine
> > * SI indicator is modified from EFS Library formula:
> > RealTimeSwings.efs (http://kb.esignalcentral.com/article.asp?
> > article=1450&p=4)
> > Formula Parameters: Default:
> > * Swing: # of Bars 0
> > This is the minimum number of bars required to define a
> > swing point. This number is for both sides of the swing
> > point (i.e. 5 bars on the left and right of the swing bar).
> > * Swing: Wave Type % Change in Price
> > (% Retracement, % Change in Price)
> > * Swing: Wave Percentage 20
> > The number 5 will be treated as 5.0%. The number 0.05 will
> > be treated as 0.0005%.
> > * Line Thickness 2
> > * Confirmed Swing Line Color Blue
> > * Developing Swing Line Color Red
> > * Display Swing Labels False
> > * Display % Retracement Label False
> > * Number of Historical Labels 100
> > * Number of Historical Trend Lines 10
> > * Display Trend Lines True
> > * Trend Line Thickness 2
> > * Trend Line Color Maroon
> > Notes:
> > 1.1 3/24/2004
> > * Added labels to display point value, % retracement, number of
bars
> > and price level of swings. The number of historical labels is set
> > to 100 for performance reasons. Increase this number to view more
> > historical labels.
> > * Added labels to display current swing's % retracement.
> > Description of Swing Labels:
> > At Swing Highs - Points (% Retracement)
> > Price (Number of Bars)
> > At Swing Lows - Price (Number of Bars)
> > Points (% Retracement)
> > *****************************************************************/
> > function preMain() {
> > setPriceStudy(true);
> > setStudyTitle("Automatic Trendlines ");
> > setShowCursorLabel(false);
> > setShowTitleParameters(false);
> >
> > var fp1 = new FunctionParameter("nNum", FunctionParameter.NUMBER);
> > fp1.setName("Swing: # of Bars");
> > fp1.setLowerLimit(0);
> > fp1.setDefault(0);
> >
> > var fp2a = new FunctionParameter("sWaveType",
> > FunctionParameter.STRING);
> > fp2a.setName("Swing: Wave Type");
> > fp2a.addOption("% Retracement");
> > fp2a.addOption("% Change in Price");
> > fp2a.setDefault("% Change in Price");
> >
> > var fp2 = new FunctionParameter("nRet", FunctionParameter.NUMBER);
> > fp2.setName("Swing: Wave Percentage");
> > fp2.setLowerLimit(0);
> > fp2.setDefault(20);
> > var fp5 = new FunctionParameter("nThickness",
> > FunctionParameter.NUMBER);
> > fp5.setName("Line Thickness");
> > fp5.setLowerLimit(1);
> > fp5.setDefault(2);
> > var fp6 = new FunctionParameter("cColor1",
FunctionParameter.COLOR);
> > fp6.setName("Confirmed Swing Line Color");
> > fp6.setDefault(Color.blue);
> > var fp7 = new FunctionParameter("cColor2",
FunctionParameter.COLOR);
> > fp7.setName("Developing Swing Line Color");
> > fp7.setDefault(Color.red);
> > var fp8 = new FunctionParameter("bSwingLabels",
> > FunctionParameter.STRING);
> > fp8.setName("Display Swing Labels");
> > fp8.addOption("True");
> > fp8.addOption("False");
> > fp8.setDefault("False");
> > var fp9 = new FunctionParameter("bRetLabel",
> > FunctionParameter.STRING);
> > fp9.setName("Display \% Retracement Label");
> > fp9.addOption("True");
> > fp9.addOption("False");
> > fp9.setDefault("False");
> > var fp10 = new FunctionParameter("nNumLabels",
> > FunctionParameter.NUMBER);
> > fp10.setName("Number of Historical Labels");
> > fp10.setLowerLimit(1);
> > fp10.setDefault(100);
> > var fp11 = new FunctionParameter("nNumATL",
FunctionParameter.NUMBER);
> > fp11.setName("Number of Historical Trend Lines");
> > fp11.setLowerLimit(1);
> > fp11.setDefault(10);
> > var fp12 = new FunctionParameter("bTrendLines",
> > FunctionParameter.STRING);
> > fp12.setName("Display Trend Lines");
> > fp12.addOption("True");
> > fp12.addOption("False");
> > fp12.setDefault("True");
> > var fp13 = new FunctionParameter("nTLThickness",
> > FunctionParameter.NUMBER);
> > fp13.setName("Trend Line Thickness");
> > fp13.setLowerLimit(1);
> > fp13.setDefault(2);
> > var fp14 = new FunctionParameter("cTLColor",
FunctionParameter.COLOR);
> > fp14.setName("Trend Line Color");
> > fp14.setDefault(Color.maroon);
> > }
> > var bEdit = true; // tracks change of user inputs
> > var cntr = 0; // image counter for swing lines
> > var bInit = false; // initialization routine completion
> > var nNumBars = null; // number of bars for defining swings
> > var sWaveTypeG = null; // wave type for confirming swings
> > var nRetpcnt = null; // percent retracement for defining swings
> > var nThicknessG = null; // line thickness
> > var cColorcon = null; // confirmed swing color
> > var cColordev1 = null; // developing swing color
> > var sHSource = null; // price source for high swings
> > var sLSource = null; // price source for low swings
> > var x1a = null; // x-coordinate for point a of developing line 1
> > var x1b = null; // x-coordinate for point b of developing line 1
> > var x2a = null; // x-coordinate for point a of developing line 2
> > var x2b = null; // x-coordinate for point b of developing line 2
> > var y1a = null; // y-coordinate for point a of developing line 1
> > var y1b = null; // y-coordinate for point b of developing line 1
> > var y2a = null; // y-coordinate for point a of developing line 2
> > var y2b = null; // y-coordinate for point b of developing line 2
> > var vLastSwing = null; // tracking swing type of last confirmed
swing
> > var nScntr = 0; // bar counter for swing confirmation
> > var nLcntr = 0; // label counter for swing labels
> > var aSwingsIndex = new Array(6); // tracks current swings indexes
for
> > last 5 swings
> > var aSwingsPrice = new Array(6); // tracks current swing prices
for
> > last 5 swings
> > var nNumLabelsG = null; // max number of swing labels
> > var bSwingLabelsG = null; // controls swing labels display
> > var vSpace = null; // spacer for Labels
> > // Automatic Trendline variables
> > var nTcntr = 0; // counter for trendline TagIDs.
> > var bDrawn = false; // flag for tracking the most recently drawn
ATL
> > var aSwingsType = new Array(6); // 1 = peak, -1 = trough
> > var nNumATLG = null; // global var for ATL limit.
> > var bTrendLinesG = null; // global var for Trend Line display
> > var nTLThicknessG = null; // global var for Trend Line thickness
> > var cTLColorG = null; // global var for Trend Line color
> > function main(nNum, sWaveType, nRet, nThickness, cColor1, cColor2,
> > bSwingLabels, bRetLabel, nNumLabels,
> > nNumATL, bTrendLines, nTLThickness, cTLColor) {
> > var nState = getBarState();
> > var nIndex = getCurrentBarIndex();
> > var h = high(0);
> > var l = low(0);
> > var c = close(0);
> > var i = 0;
> > // record keeping
> > if (nState == BARSTATE_NEWBAR) {
> > if (cntr > 500) cntr = 0; // limits number of swing lines to 500.
> > if (x1a != null) x1a -= 1;
> > if (x1b != null) x1b -= 1;
> > if (x2a != null) x2a -= 1;
> > if (x2b != null) x2b -= 1;
> > i = 0;
> > for (i = 0; i < 6; ++i) {
> > if (aSwingsIndex[i] != null) aSwingsIndex[i] -= 1;
> > }
> > }
> > //Initialization
> > if (bEdit == true) {
> > if (nNumBars == null) nNumBars = nNum;
> > if (sWaveTypeG == null) sWaveTypeG = sWaveType;
> > if (nRetpcnt == null) nRetpcnt = nRet/100;
> > if (nThicknessG == null) nThicknessG = nThickness;
> > if (cColorcon == null) cColorcon = cColor1;
> > if (cColordev1 == null) cColordev1 = cColor2;
> > if (sHSource == null) sHSource = "High";
> > if (sLSource == null) sLSource = "Low";
> > if (x1a == null) x1a = 0;
> > if (y1a == null) y1a = c;
> > if (nNumLabelsG == null) nNumLabelsG = nNumLabels;
> > if (bSwingLabelsG == null) bSwingLabelsG = bSwingLabels;
> > if (nNumATLG == null) nNumATLG = nNumATL;
> > if (bTrendLinesG == null) bTrendLinesG = bTrendLines;
> > if (nTLThicknessG == null) nTLThicknessG = nTLThickness;
> > if (cTLColorG == null) cTLColorG = cTLColor;
> > nLcntr = nNumLabels;
> > // Initialize vSpace
> > var OM = (close(0) * 0.005); //offset multiplier
> > var sInterval = getInterval();
> > if (sInterval == "D") OM = OM*3;
> > if (sInterval == "W") OM = OM*20;
> > if (sInterval == "M") OM = OM*30;
> > var TimeFrame = parseInt(sInterval);
> > if (TimeFrame >= 1 && TimeFrame <= 5) {
> > OM = OM*(TimeFrame/15);
> > } else if (TimeFrame > 5 && TimeFrame <= 15) {
> > OM = OM*(TimeFrame/10);
> > }else if (TimeFrame > 15) {
> > OM = OM*(TimeFrame/5);
> > }
> > if (!isNaN(TimeFrame)) OM = (OM/TimeFrame)*3;
> > vSpace = OM;
> > bEdit = false;
> > }
> > if (bInit == false) {
> > bInit = Init(h,l,c);
> > }
> > // Swings
> > if (nState == BARSTATE_NEWBAR) {
> > nScntr += 1;
> > // confirmed Swings
> > if (nScntr > nNumBars) {
> > confirmSwings();
> > if (bInit == true) {
> > doLine("dev1");
> > doLine("dev2");
> > }
> > }
> > }
> >
> > checkSwings(h, l);
> > if (bInit == true) {
> > doLine("dev1");
> > doLine("dev2");
> > }
> > // % Retracement Label
> > var nWaveRet = (Math.abs(y2a-y2b) / Math.abs(y1b-y1a))*100;
> > if (x1b == x2b) nWaveRet = 0.0;
> > if (bRetLabel == "True") {
> > var sWaveRetText = " \%Retraced: " + nWaveRet.toFixed(2) + " ";
> > drawTextRelative(2, y2b, sWaveRetText, cColordev1, null,
> > Text.BOLD|Text.LEFT|Text.VCENTER|Text.FRAME, "Arial", 10, "Ret");
> > }
> > // Automatic Trendlines (ATL)
> > if (nState == BARSTATE_NEWBAR && bDrawn == false) autoTL();
> >
> > return;
> > }
> > /****** Functions *****/
> > /***********************/
> > function Init(h,l,c) {
> > if (close(-(nNumBars*2)) == null) {
> > return false;
> > } else {
> > // Find initial line.
> > // The initial line will be the first high or low swing,
> > // which has the greater difference of the swing point to
> > // the close of the first bar.
> > var Index = getCurrentBarIndex()
> > var hIndex = Index;
> > var lIndex = Index;
> > var j = nNumBars*2;
> > if (j == 0) j = 1;
> > var aHigh = getValue(sHSource, 0, -j);
> > var aLow = getValue(sLSource, 0, -j);
> > var vHH = aHigh[0];
> > var vLL = aLow[0];
> > var tempIndex = Index;
> > var i = 0;
> > for (i = 0; i < j; ++i) {
> > if (aHigh[i] > vHH) {
> > vHH = aHigh[i];
> > hIndex = tempIndex;
> > }
> > if (aLow[i] < vLL) {
> > vLL = aLow[i];
> > lIndex = tempIndex;
> > }
> > tempIndex -= 1;
> > }
> > if (vHH - y1a > y1a - vLL) {
> > vLastSwing = "L";
> > x1b = hIndex - Index;
> > y1b = vHH;
> > doLine("dev1");
> > x2a = x1b;
> > y2a = vHH;
> > x2b = 0;
> > y2b = c;
> > doLine("dev2");
> > } else {
> > vLastSwing = "H";
> > x1b = lIndex - Index;
> > y1b = vLL;
> > doLine("dev1");
> > x2a = x1b;
> > y2a = vLL;
> > x2b = 0;
> > y2b = c;
> > doLine("dev2");
> > }
> > }
> >
> > if (vLastSwing != null) {
> > return true;
> > } else {
> > return false;
> > }
> > }
> > function doLine(sType) {
> > //confirmed
> > if (sType == "con") {
> > cntr += 1;
> > nTcntr += 1;
> > bDrawn = false; // reset ATL drawing
> > if (nTcntr > nNumATLG) nTcntr = 1;
> > drawLineRelative(x1a, y1a, x1b, y1b, PS_SOLID,
> > nThicknessG, cColorcon, sType+cntr);
> > //Swing Labels
> > if (bSwingLabelsG == "True") doSwingLabels(sType);
> > x1a = x2a;
> > y1a = y2a;
> > x1b = x2b;
> > y1b = y2b;
> > x2a = x1b;
> > y2a = y1b;
> > aSwingsIndex.pop();
> > aSwingsIndex.unshift(x1b);
> > aSwingsPrice.pop();
> > aSwingsPrice.unshift(y1b);
> > if (vLastSwing == "H") {
> > y2b = getValue(sHSource);
> > aSwingsType.pop();
> > aSwingsType.unshift(1); // record type of swing for ATL
> > }
> > if (vLastSwing == "L") {
> > y2b = getValue(sLSource);
> > aSwingsType.pop();
> > aSwingsType.unshift(-1); // record type of swing for ATL
> > }
> > }
> > // dev1
> > if (sType == "dev1") {
> > drawLineRelative(x1a, y1a, x1b, y1b, PS_SOLID,
> > nThicknessG, cColordev1, sType);
> > aSwingsIndex[0] = x1b;
> > aSwingsPrice[0] = y1b;
> > //Swing Labels
> > if (bSwingLabelsG == "True") doSwingLabels(sType);
> > }
> >
> > // dev2
> > if (sType == "dev2") {
> > if (x2a != 0 && x2a != x2b) {
> > if ( (vLastSwing == "H" && sHSource == "Close") || (vLastSwing
== "L"
> > && sLSource == "Close") ) {
> > x2b = 0;
> > y2b = close();
> > }
> > drawLineRelative(x2a, y2a, x2b, y2b, PS_SOLID,
> > nThicknessG, cColordev1, sType);
> > } else {
> > removeLine(sType);
> > }
> > }
> >
> > return;
> > }
> > function doSwingLabels(sType) {
> > var sTagNamePts = "SwingPtsDev";
> > var sTagNameRet = "SwingRetDev";
> > var sTagNamePr = "SwingPrDev";
> > var sTagNameBars = "SwingBarsDev";
> > var nWaveRet = ((Math.abs(aSwingsPrice[1]-aSwingsPrice[0]) /
Math.abs
> > (aSwingsPrice[1]-aSwingsPrice[2])) * 100);
> > var nBars = (aSwingsIndex[0] - aSwingsIndex[1]);
> >
> > if (sType == "con") {
> > //nWaveRet = (Math.abs(y2a-y2b) / Math.abs(y1b-y1a));
> > nLcntr += 1;
> > if (nLcntr > nNumLabelsG) nLcntr = 1;
> > sTagNamePts = "SwingPts"+sType+nLcntr;
> > sTagNameRet = "SwingRet"+sType+nLcntr;
> > sTagNamePr = "SwingPr"+sType+nLcntr;
> > sTagNameBars = "SwingBars"+sType+nLcntr;
> > }
> >
> > var pts = (y1b-y1a).toFixed(2);
> >if (y1a < y1b) { // swing high
> > drawTextRelative(x1b, y1b+vSpace, pts + " ", eval
("cColor"+sType),
> > null,
> > Text.BOTTOM|Text.RIGHT, "Arial", 10, sTagNamePts); // Points
> > if (!isNaN(nWaveRet)) {
> > drawTextRelative(x1b, y1b+vSpace, "| ("+nWaveRet.toFixed(2)+"\
%)",
> > eval("cColor"+sType), null,
> > Text.BOTTOM|Text.LEFT, "Arial", 10, sTagNameRet); // % Retracement
> > }
> > drawTextRelative(x1b, y1b+vSpace, y1b.toFixed(2) + " ", eval
> > ("cColor"+sType), null,
> > Text.TOP|Text.RIGHT, "Arial", 10, sTagNamePr); // Price
> > if (!isNaN(nBars)) {
> > drawTextRelative(x1b, y1b+vSpace, "| ("+nBars+" Bars)", eval
> > ("cColor"+sType), null,
> > Text.TOP|Text.LEFT, "Arial", 10, sTagNameBars); // Number of Bars
> > }
> > } else { // swing low
> > drawTextRelative(x1b, y1b-vSpace, pts + " ", eval
("cColor"+sType),
> > null,
> > Text.TOP|Text.RIGHT, "Arial", 10, sTagNamePts); // Points
> > if (!isNaN(nWaveRet)) {
> > drawTextRelative(x1b, y1b-vSpace, "| ("+nWaveRet.toFixed(2)+"\
%)",
> > eval("cColor"+sType), null,
> > Text.TOP|Text.LEFT, "Arial", 10, sTagNameRet); // % Retracement
> > }
> > drawTextRelative(x1b, y1b-vSpace, y1b.toFixed(2) + " ", eval
> > ("cColor"+sType), null,
> > Text.BOTTOM|Text.RIGHT, "Arial", 10, sTagNamePr); // Price
> > if (!isNaN(nBars)) {
> > drawTextRelative(x1b, y1b-vSpace, "| ("+nBars+" Bars)", eval
> > ("cColor"+sType), null,
> > Text.BOTTOM|Text.LEFT, "Arial", 10, sTagNameBars); // Number of
Bars
> > }
> > }
> > return;
> > }
> > function confirmSwings() {
> > if (x1b != x2b) { // underdeveloped dev1 line
> > if (sWaveTypeG == "% Retracement") {
> > var nWave = (Math.abs(y2a-y2b) / Math.abs(y1b-y1a));
> > } else {
> > var nWave = (Math.abs(y2a-y2b) / y1b);
> > }
> > if (vLastSwing == "L" && nWave >= nRetpcnt ) {
> > // Swing High
> > nScntr = 0;
> > vLastSwing = "H";
> > doLine("con");
> > } else if (vLastSwing == "H" && nWave >= nRetpcnt ) {
> > // Swing Low
> > nScntr = 0;
> > vLastSwing = "L";
> > doLine("con");
> > }
> > }
> >
> > return;
> > }
> > function checkSwings(h, l) {
> > // dev1
> > if (vLastSwing == "L") { // find Swing High
> > if (h >= y1b) { // higher high, no swing
> > nScntr = 0;
> > x1b = 0;
> > y1b = h;
> > doLine("dev1");
> > x2a = 0;
> > y2a = h;
> > }
> > } else if (vLastSwing == "H") { // find Swing Low
> > if (l <= y1b) { // Lower low, no swing
> > nScntr = 0;
> > x1b = 0;
> > y1b = l;
> > doLine("dev1");
> > x2a = 0;
> > y2a = l;
> > }
> > }
> > // dev2
> > if (nScntr == 0) {
> > x2b = 0;
> > if (vLastSwing == "H") y2b = h;
> > if (vLastSwing == "L") y2b = l;
> > } else {
> > if (vLastSwing == "H" && h >= y2b) {
> > y2b = h; x2b = 0;
> > } else if (vLastSwing == "L" && l <= y2b) {
> > y2b = l; x2b = 0;
> > }
> > }
> > return;
> > }
> > function autoTL() { // draw Automatic Trendlines
> > if (bTrendLinesG == "False" || getBarState() != BARSTATE_NEWBAR)
> > return;
> >
> > if (aSwingsIndex[4] == null) return; // not enough confirmed
swings
> > yet
> > var bCond = false; // condition flag
> > var nATLx1 = 0; // x-coordinate for start of ray
> > var nATLx2 = 0; // x-coordinate for second point of ray
> > var nATLy1 = null; // y-coordinate for start of ray
> > var nATLy2 = null; // y-coordinate for second point of ray
> > var sATL_ID = "ATL" + nTcntr; // tagID for ATL
> > var nIndex = getCurrentBarIndex();
> >
> > var P1 = aSwingsType[5];
> > var P2 = aSwingsType[4];
> > var P3 = aSwingsType[3];
> > var P4 = aSwingsType[2];
> >
> > // Condition 1
> > if (P4 == 1 && P2 == 1 && aSwingsPrice[4] < aSwingsPrice[2]) {
> > if (atlHigh(aSwingsIndex[4], aSwingsIndex[2]) < high(0)) {
> > nATLx1 = aSwingsIndex[4];
> > nATLx2 = aSwingsIndex[2];
> > nATLy1 = aSwingsPrice[4];
> > nATLy2 = aSwingsPrice[2];
> > sATL_ID += "_h";
> > bCond = true;
> > }
> > }
> >
> > // Condition 2
> > if (bCond == false) {
> > if (P4 == -1 && P2 == -1 && aSwingsPrice[4] > aSwingsPrice[2]) {
> > if (atlLow(aSwingsIndex[4], aSwingsIndex[2]) > low(0)) {
> > nATLx1 = aSwingsIndex[4];
> > nATLx2 = aSwingsIndex[2];
> > nATLy1 = aSwingsPrice[4];
> > nATLy2 = aSwingsPrice[2];
> > sATL_ID += "_l";
> > bCond = true;
> > }
> > }
> > }
> >
> > // Condition 3
> > if (bCond == false) {
> > if (P3 == 1 && P1 == 1 && aSwingsPrice[5] < aSwingsPrice[3]) {
> > if (atlHigh(aSwingsIndex[5], aSwingsIndex[3]) < atlHigh
(aSwingsIndex
> > [3], 0)) {
> > nATLx1 = aSwingsIndex[5];
> > nATLx2 = aSwingsIndex[3];
> > nATLy1 = aSwingsPrice[5];
> > nATLy2 = aSwingsPrice[3];
> > sATL_ID += "_h";
> > bCond = true;
> > }
> > }
> > }
> >
> > // Condition 4
> > if (bCond == false) {
> > if (P3 == -1 && P1 == -1 && aSwingsPrice[5] > aSwingsPrice[3]) {
> > if (atlLow(aSwingsIndex[5], aSwingsIndex[3]) > atlLow(aSwingsIndex
> > [3], 0)) {
> > nATLx1 = aSwingsIndex[5];
> > nATLx2 = aSwingsIndex[3];
> > nATLy1 = aSwingsPrice[5];
> > nATLy2 = aSwingsPrice[3];
> > sATL_ID += "_l";
> > bCond = true;
> > }
> > }
> > }
> >
> >
> > // draw trend line
> > if (nATLy1 != null && nATLy2 != null && bCond == true) {
> > drawRay(nATLx1, nATLy1, nATLx2, nATLy2, sATL_ID);
> > bDrawn = true;
> > }
> >
> > return;
> > }
> > function atlHigh(x1, x2) {
> > // returns highest high between bar indexes x1 and x2
> > // where x2 is most recent index.
> > var nH = high(x1);
> >
> > for (var i = x1; i <= x2; i++) {
> > nH = Math.max(nH, high(i));
> > }
> >
> > return nH;
> > }
> > function atlLow(x1, x2) {
> > // returns Lowest low between bar indexes x1 and x2
> > // where x2 is most recent index.
> > var nL = low(x1);
> >
> > for (var i = x1; i <= x2; i++) {
> > nL = Math.min(nL, low(i));
> > }
> > return nL;
> > }
> > function getSlope(x1, y1, x2, y2) {
> > return (y2 - y1) / (x2 - x1);
> > }
> > function drawRay(x1, y1, x2, y2, sID) {
> > var x1_ray = x1;
> > var y1_ray = y1;
> >
> > var nSlope = getSlope(x1, y1, x2, y2);
> >
> > // draw ray from bar with greatest slope factor between swings.
> > var j = x1;
> > var nEnd = x2;
> >
> > if (nSlope > 0) { // up trend
> > for(j; j <= nEnd; j++) {
> > var nTempSlope = getSlope(j, low(j), x2, y2);
> > if (nTempSlope > nSlope) {
> > nSlope = nTempSlope;
> > x1_ray = j;
> > y1_ray = low(j);
> > }
> > }
> > } else if (nSlope < 0) { // down trend
> > for(j; j <= nEnd; j++) {
> > var nTempSlope = getSlope(j, high(j), x2, y2);
> > if (nTempSlope < nSlope) {
> > nSlope = nTempSlope;
> > x1_ray = j;
> > y1_ray = high(j);
> > }
> > }
> > }
> >
> > var nSlopeAdj = nSlope * 500;
> > y2 += nSlopeAdj;
> > x2 += 500;
> >
> > drawLineRelative(x1_ray, y1_ray, x2, y2, PS_SOLID,
> > nTLThicknessG, cTLColorG, sID);
> > return;
> > }
> >
> >
> >
> >
> >
> >
> > ------------------------------------
> >
> > **** IMPORTANT PLEASE READ ****
> > This group is for the discussion between users only.
> > This is *NOT* technical support channel.
> >
> > TO GET TECHNICAL SUPPORT send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
> > http://www.amibroker.com/feedback/
> > (submissions sent via other channels won't be considered)
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > Yahoo! Groups Links
> >
> >
> >
>
------------------------------------
**** IMPORTANT PLEASE READ ****
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This is *NOT* technical support channel.
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TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
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