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Harmonic pattern 1.1.1 for Amibroker (AFL)
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/* HARMONIC PATTERN DETECTION Automatic Detection of Harmonic Patterns - Gartley, Bat, Butterfly and Crab. Zig Zag is not used in this AFL. It is based on fractals Contact - joy.edakad@gmail.com */ _SECTION_BEGIN("Price"); SetChartOptions(0,chartShowArrows|chartShowDates); _N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) )); Plot( C, "Close", ParamColor("Color", colorBlack ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() ); _SECTION_END(); _SECTION_BEGIN("Gartley"); GBmin = Param("Swing B Min.",0.55,0.3,1,0.01); GBmax = Param("Swing B Max.",0.72,0.4,1,0.01); GCmin = Param("Swing C Min.",0.38,0.3,1.27,0.01); GCmax = Param("Swing C Max.",1.0,0.4,1.27,0.01); GDmin = Param("Swing D Min.(XA)",0.55,0.3,1,0.01); GDmax = Param("Swing D Max.(XA)",1.0,0.4,1.0,0.01); _SECTION_END(); _SECTION_BEGIN("Bat"); BatBmin = Param("Swing B Min.",0.38,0.3,1,0.01); BatBmax = Param("Swing B Max.",0.55,0.4,1,0.01); BatCmin = Param("Swing C Min.",0.38,0.3,1.62,0.01); BatCmax = Param("Swing C Max.",1.27,0.4,1.62,0.01); BatDmin = Param("Swing D Min.(XA)",0.5,0.3,1,0.01); BatDmax = Param("Swing D Max.(XA)",1.0,0.4,1.0,0.01); _SECTION_END(); _SECTION_BEGIN("Butterfly"); BtBmin = Param("Swing B Min.",0.55,0.3,1,0.01); BtBmax = Param("Swing B Max.",0.9,0.4,1,0.01); BtCmin = Param("Swing C Min.",0.38,0.3,1.62,0.01); BtCmax = Param("Swing C Max.",1.27,0.4,1.62,0.01); BtDmin = Param("Swing D Min.(XA)",1,1,1.8,0.01); BtDmax = Param("Swing D Max.(XA)",1.38,1,1.8,0.01); _SECTION_END(); _SECTION_BEGIN("Crab"); CBmin = Param("Swing B Min.",0.38,0.3,1,0.01); CBmax = Param("Swing B Max.",0.65,0.4,1,0.01); CCmin = Param("Swing C Min.",0.38,0.3,1.62,0.01); CCmax = Param("Swing C Max.",1.270,0.4,1.62,0.01); CDmin = Param("Swing D Min.(XA)",1.25,1,1.8,0.01); CDmax = Param("Swing D Max.(XA)",1.8,1,2,0.01); _SECTION_END(); _SECTION_BEGIN("Patterns"); strength = Param("Strength",5,2,15,1); bu = ParamToggle("Bullish Pattern","Off|On",1); be = ParamToggle("Bearish Pattern","Off|On",1); bi = Cum(1)-1; function GetTop(bars) { Top = H == HHV(H,2*bars) AND Ref(HHV(H,bars),bars) < H; Top = Top AND LastValue(bi)-ValueWhen(Top,bi) > bars; return Top; } function GetValley(bars) { Valley = L == LLV(L,2*bars) AND Ref(LLV(L,bars),bars) > L; Valley = Valley AND LastValue(bi)-ValueWhen(Valley,bi) > bars; return Valley; } // Build fractals array P1 = GetTop(strength); V1 = GetValley(Strength); P1 = IIf(P1,IIf(ValueWhen(P1,bi,2) < ValueWhen(V1,bi),P1,IIf(ValueWhen(P1,H,2) > H,False,P1)),P1); //P1 = IIf(P1 AND ValueWhen(P1,bi,0) > bi,IIf(ValueWhen(P1,bi,0) < ValueWhen(V1,bi,0),IIf(ValueWhen(P1,H,0) >= H,False,P1),P1),P1); P1 = IIf(P1 AND ValueWhen(P1,bi,0) > bi AND NOT(ValueWhen(V1,bi,0) > 0 AND ValueWhen(V1,bi,0)<ValueWhen(P1,bi,0)),IIf(ValueWhen(P1,H)<=ValueWhen(P1,H,0),False,P1),P1); V1 = IIf(V1,IIf(ValueWhen(V1,bi,2) < ValueWhen(P1,bi),V1,IIf(ValueWhen(V1,L,2)<L,False,V1)),V1); //V1 = IIf(V1 AND ValueWhen(V1,bi,0) > bi ,IIf(ValueWhen(V1,bi,0) < ValueWhen(P1,bi,0),IIf(ValueWhen(V1,L,0) <= L, False,V1),V1),V1); V1 = IIf(V1 AND ValueWhen(V1,bi,0) > bi AND NOT(ValueWhen(P1,bi,0) > bi AND ValueWhen(P1,bi,0)<ValueWhen(V1,bi,0)) , IIf(ValueWhen(V1,L)>=ValueWhen(V1,L,0),False,V1),V1); P1H1 = ValueWhen(P1,H); P1Bar1 = ValueWhen(P1,bi); P1H2 = ValueWhen(P1,H,2); P1Bar2 = ValueWhen(P1,bi,2); V1L1 = ValueWhen(V1,L); V1Bar1 = ValueWhen(V1,bi); V1L2 = ValueWhen(V1,L,2); V1Bar2 = ValueWhen(V1,bi,2); //Bullish Patterns PTvalid = (P1Bar1 > V1Bar1 AND V1Bar1 > P1Bar2 AND P1bar2 > V1Bar2) AND P1; // Peaks and troughs are in order // 4 swings of developing Gartley/Bat etc. BullGartley4 = PTvalid AND (P1H2-V1L1)/(P1H2-V1L2) > GBmin AND (P1H2-V1L1)/(P1H2-V1L2) < GBmax AND (P1H1-V1L1)/(P1H2-V1L1) > GCMin AND (P1H1-V1L1)/(P1H2-V1L1) < GCMax; BullBat4 = PTvalid AND (P1H2-V1L1)/(P1H2-V1L2) > BatBmin AND (P1H2-V1L1)/(P1H2-V1L2) < BatBmax AND (P1H1-V1L1)/(P1H2-V1L1) > BatCMin AND (P1H1-V1L1)/(P1H2-V1L1) < BatCMax; BullButterfly4 = PTvalid AND (P1H2-V1L1)/(P1H2-V1L2) > BtBmin AND (P1H2-V1L1)/(P1H2-V1L2) < BtBMax AND (P1H1-V1L1)/(P1H2-V1L1) > BtCmin AND (P1H1-V1L1)/(P1H2-V1L1) < BtCmax; BullCrab4 = PTvalid AND (P1H2-V1L1)/(P1H2-V1L2) >CBmin AND (P1H2-V1L1)/(P1H2-V1L2) < CBmax AND (P1H1-V1L1)/(P1H2-V1L1) > CCmin AND (P1H1-V1L1)/(P1H2-V1L1) < CCmax; // Bullish Gartley/Bat found. D retacement level is not evaluated BullGartley = IIf(LowestSince(BullGartley4,L) < ValueWhen(BullGartley4,P1H2)-(ValueWhen(BullGartley4,P1H2)-ValueWhen(BullGartley4,V1L2))*GDmin AND LowestSince(bullGartley4,L) > ValueWhen(BullGartley4,P1H2)-(ValueWhen(BullGartley4,P1H2)-ValueWhen(BullGartley4,V1L2))*GDmax AND HighestSince(BullGartley4,H) <= ValueWhen(BullGartley4,P1H1 ) AND LowestSince(bullGartley4,L)==L, True,False); BullGartley = BullGartley AND LowestSince(BullGartley4,L) < ValueWhen(BullGartley4,V1L1); BullBat = IIf(LowestSince(BullBat4,L) < ValueWhen(BullBat4,P1H2)-(ValueWhen(BullBat4,P1H2)-ValueWhen(BullBat4,V1L2))*BatDmin AND LowestSince(BullBat4,L) > ValueWhen(BullBat4,P1H2)-(ValueWhen(BullBat4,P1H2)-ValueWhen(BullBat4,V1L2))*BatDmax AND HighestSince(BullBat4,H) <= ValueWhen(BullBat4,P1H1 ) AND LowestSince(BullBat4,L)==L, True,False); BullBat = BullBat AND LowestSince(BullCrab4,L) < ValueWhen(BullCrab4,V1L1); BullCrab = IIf(LowestSince(BullCrab4,L) < ValueWhen(BullCrab4,P1H2)-(ValueWhen(BullCrab4,P1H2)-ValueWhen(BullCrab4,V1L2))*CDmin AND LowestSince(BullCrab4,L) > ValueWhen(BullCrab4,P1H2)-(ValueWhen(BullCrab4,P1H2)-ValueWhen(BullCrab4,V1L2))*CDmax AND HighestSince(BullCrab4,H) <= ValueWhen(BullCrab4,P1H1 ) AND LowestSince(bullGartley4,L)==L, True,False); BullCrab = BullCrab AND LowestSince(BullCrab4,L) < ValueWhen(BullCrab4,V1L2); BullButterfly = IIf(LowestSince(BullButterfly4,L) < ValueWhen(BullButterfly4,P1H2)-(ValueWhen(BullButterfly4,P1H2)-ValueWhen(BullButterfly4,V1L2))*BtDMin AND LowestSince(BullButterfly4,L) > ValueWhen(BullButterfly4,P1H2)-(ValueWhen(BullButterfly4,P1H2)-ValueWhen(BullButterfly4,V1L2))*BtDmax AND HighestSince(BullButterfly4,H) <= ValueWhen(BullButterfly4,P1H1 ) AND LowestSince(bullButterfly4,L)==L, True,False); BullButterfly = BullButterfly AND LowestSince(BullButterfly4,L) < ValueWhen(BullButterfly4,V1L2); // to remove redumbdent lines BullHar4 = BullGartley4 OR BullButterfly4 OR BullBat4 OR BullCrab4 ; BullHar = BullGartley OR BullButterfly OR BullBat OR BullCrab ; Point4 = IIf(BullHar,ValueWhen(BullHar4,bi),Null); BullHar = IIf(BullHar, IIf(Point4 == ValueWhen(BullHar,point4,0) AND ValueWhen(BullHar,bi,0) > bi ,False,BullHar),BullHar); X = ValueWhen(BullHar4,V1L2); Xbar = ValueWhen(BullHar4,V1Bar2); A = ValueWhen(BullHar4,P1H2); Abar = ValueWhen(BullHar4,P1bar2); B = ValueWhen(BullHar4,V1L1); Bbar = ValueWhen(BullHar4,V1bar1); C1 = ValueWhen(BullHar4,P1H1); C1bar = ValueWhen(BullHar4,P1bar1); D = ValueWhen(BullHar,L); Dbar = ValueWhen(BullHar,bi); ABdXA = (A-B)/(A-X); BCdAB = (C1-B)/(A-B); ADdXA = (A-D)/(A-X); BCdCD = (C1-D)/(C1-B); PlotPattern = Dbar > C1bar; if(LastValue(PlotPattern) AND bu) { Plot( LineArray(LastValue(Xbar),LastValue(X),LastValue(Abar),LastValue(A)),"",colorBlue,styleThick); Plot(LineArray(LastValue(Abar),LastValue(A),LastValue(Bbar),LastValue(B)),"",colorBlue,styleThick); Plot(LineArray(LastValue(Bbar),LastValue(B),LastValue(C1bar),LastValue(C1)),"",colorBlue,styleThick); Plot(LineArray(LastValue(C1bar),LastValue(C1),LastValue(Dbar),LastValue(D)),"",colorBlue,styleThick); Plot(LineArray(LastValue(Xbar),LastValue(X),LastValue(Bbar),LastValue(B)),"",colorBlue,styleDashed); Plot(LineArray(LastValue(Xbar),LastValue(X),LastValue(Abar),LastValue(A)),"",colorBlue,styleThick); Plot(LineArray(LastValue(Abar),LastValue(A),LastValue(C1bar),LastValue(C1)),"",colorBlue,styleDashed); Plot(LineArray(LastValue(Bbar),LastValue(B),LastValue(Dbar),LastValue(D)),"",colorBlue,styleDashed); Plot(LineArray(LastValue(Xbar),LastValue(X),LastValue(Dbar),LastValue(D)),"",colorBlue,styleDashed); PlotText(NumToStr(LastValue(ABdXA),1.2),(LastValue(Bbar)+LastValue(Xbar))/2,(LastValue(B)+LastValue(X))/2,colorBlue); PlotText(NumToStr(LastValue(BCdAB),1.2),(LastValue(C1bar)+LastValue(Abar))/2,(LastValue(C1)+LastValue(A))/2,colorBlue); PlotText(NumToStr(LastValue(ADdXA),1.2) ,(LastValue(Dbar)+LastValue(Xbar))/2,(LastValue(D)+LastValue(X))/2,colorBlue); PlotText(NumToStr(LastValue(BCdCD),1.2),(LastValue(Bbar)+LastValue(Dbar))/2,(LastValue(B)+LastValue(D))/2,colorBlue); } // Bearish Patterns PTvalid = (V1Bar1 > P1Bar1 AND P1Bar1 > V1Bar2 AND V1Bar2 > P1Bar2) AND V1; // Swing 4 BearGartley4 = PTvalid AND (P1H1-V1L2)/(P1H2-V1L2) > GBmin AND (P1H1-V1L2)/(P1H2-V1L2) < GBmax AND (P1H1-V1L1)/(P1H1-V1L2) > GCmin AND (P1H1-V1L1)/(P1H1-V1L2) < GCmax; BearBat4 = PTvalid AND (P1H1-V1L2)/(P1H2-V1L2) > BatBmin AND (P1H1-V1L2)/(P1H2-V1L2) < BatBmax AND (P1H1-V1L1)/(P1H1-V1L2) > BatCmin AND (P1H1-V1L1)/(P1H1-V1L2) < BatCmax; BearButterfly4 = PTvalid AND (P1H1-V1L2)/(P1H2-V1L2) > BtBmin AND (P1H1-V1L2)/(P1H2-V1L2) < BtBmax AND (P1H1-V1L1)/(P1H1-V1L2) > BtCmin AND (P1H1-V1L1)/(P1H1-V1L2) < BtCmax; BearCrab4 = PTvalid AND (P1H1-V1L2)/(P1H2-V1L2) > CBmin AND (P1H1-V1L2)/(P1H2-V1L2) < CBmax AND (P1H1-V1L1)/(P1H1-V1L2) > CCmin AND (P1H1-V1L1)/(P1H1-V1L2) < CCmax; // Poin D BearGartley = IIf(HighestSince(bearGartley4,H) > ValueWhen(BearGartley4,V1L2) + (ValueWhen(BearGartley4,P1H2) - ValueWhen(BearGartley4,V1L2))*GDmin AND HighestSince(bearGartley4,H) < ValueWhen(BearGartley4,V1L2) + (ValueWhen(BearGartley4,P1H2) - ValueWhen(BearGartley4,V1L2))*GDMax AND LowestSince(BearGartley4,L) >= ValueWhen(BearGartley4,V1L1 ) AND HighestSince(BearGartley4,H) == H, True, False); BearGartley = BearGartley AND HighestSince(BearGartley4,H) > ValueWhen(BearGartley4,P1H1); BearBat = IIf((HighestSince(BearBat4,H) > ValueWhen(BearBat4,V1L2) + (ValueWhen(BearBat4,P1H2) - ValueWhen(BearBat4,V1L2))*BatDmin AND HighestSince(BearBat4,H) < ValueWhen(BearBat4,V1L2) + (ValueWhen(BearBat4,P1H2) - ValueWhen(BearBat4,V1L2))*BatDMax AND LowestSince(BearBat4,L) >= ValueWhen(BearBat4,V1L1 ) AND HighestSince(BearBat4,H) == H), True, False); BearBat = BearBat AND HighestSince(BearBat4,H) > ValueWhen(BearBat4,P1H1); BearButterfly = IIf(HighestSince(BearButterfly4,H) > ValueWhen(BearButterfly4,V1L2) + (ValueWhen(BearButterfly4,P1H2) - ValueWhen(BearButterfly4,V1L2))*BtDmin AND HighestSince(BearButterfly4,H) < ValueWhen(BearButterfly4,V1L2) + (ValueWhen(BearButterfly4,P1H2) - ValueWhen(BearButterfly4,V1L2))*BtDMax AND LowestSince(BearButterfly4,L) >= ValueWhen(BearButterfly4,V1L1 ) AND HighestSince(BearButterfly4,H) == H, True, False); BearButterfly = BearButterfly AND HighestSince(BearButterfly4,H) > ValueWhen(BearButterfly4,P1H2); BearCrab = IIf(HighestSince(BearCrab4,H) > ValueWhen(BearCrab4,V1L2) + (ValueWhen(BearCrab4,P1H2) - ValueWhen(BearCrab4,V1L2))*CDmin AND HighestSince(BearCrab4,H) < ValueWhen(BearCrab4,V1L2) + (ValueWhen(BearCrab4,P1H2) - ValueWhen(BearCrab4,V1L2))*CDMax AND LowestSince(BearCrab4,L) >= ValueWhen(BearCrab4,V1L1 ) AND HighestSince(BearCrab4,H) == H, True, False); BearCrab =BearCrab AND HighestSince(BearCrab4,H) > ValueWhen(BearCrab4,P1H2); BearHar4 = BearGartley4 OR BearButterfly4 OR BearBat4 OR BearCrab4 ; BearHar = BearGartley OR BearButterfly OR BearBat OR BearCrab ; Point4 = IIf(BearHar,ValueWhen(BearHar4,bi),Null); BearHar = IIf(BearHar, IIf(Point4 == ValueWhen(BearHar,point4,0) AND ValueWhen(BearHar,bi,0) > bi ,False,BearHar),BearHar); X = ValueWhen(BearHar4,P1H2); Xbar = ValueWhen(BearHar4,P1Bar2); A = ValueWhen(BearHar4,V1L2); Abar = ValueWhen( BearHar4,V1bar2); B = ValueWhen(BearHar4,P1H1); Bbar = ValueWhen(BearHar4,P1bar1); C1 = ValueWhen(BearHar4,V1L1); C1bar = ValueWhen(BearHar4,V1bar1); D = ValueWhen(BearHar,H); Dbar = ValueWhen(BearHar,bi); ABdXA = (B-A)/(X-A); BCdAB = (B-C1)/(B-A); ADdXA = (D-A)/(X-A); BCdCD = (D-C1)/(B-C1); PlotPattern = Dbar > C1bar; if(LastValue(Plotpattern) AND be) { Plot( LineArray(LastValue(Xbar),LastValue(X),LastValue(Abar),LastValue(A)),"",colorRed,styleThick); Plot(LineArray(LastValue(Abar),LastValue(A),LastValue(Bbar),LastValue(B)),"",colorRed,styleThick); Plot(LineArray(LastValue(Bbar),LastValue(B),LastValue(C1bar),LastValue(C1)),"",colorRed,styleThick); Plot(LineArray(LastValue(C1bar),LastValue(C1),LastValue(Dbar),LastValue(D)),"",colorRed,styleThick); Plot(LineArray(LastValue(Xbar),LastValue(X),LastValue(Bbar),LastValue(B)),"",colorRed,styleDashed); Plot(LineArray(LastValue(Xbar),LastValue(X),LastValue(Abar),LastValue(A)),"",colorRed,styleThick); Plot(LineArray(LastValue(Abar),LastValue(A),LastValue(C1bar),LastValue(C1)),"",colorRed,styleDashed); Plot(LineArray(LastValue(Bbar),LastValue(B),LastValue(Dbar),LastValue(D)),"",colorRed,styleDashed); Plot(LineArray(LastValue(Xbar),LastValue(X),LastValue(Dbar),LastValue(D)),"",colorRed,styleDashed); PlotText(NumToStr(LastValue(ABdXA),1.2),(LastValue(Bbar)+LastValue(Xbar))/2,(LastValue(B)+LastValue(X))/2,colorRed); PlotText(NumToStr(LastValue(BCdAB),1.2),(LastValue(C1bar)+LastValue(Abar))/2,(LastValue(C1)+LastValue(A))/2,colorRed); PlotText(NumToStr(LastValue(BCdCD),1.2) ,(LastValue(Dbar)+LastValue(Bbar))/2,(LastValue(D)+LastValue(B))/2,colorRed); PlotText(NumToStr(LastValue(ADdXA),1.2) ,(LastValue(Dbar)+LastValue(Xbar))/2,(LastValue(D)+LastValue(X))/2,colorRed); } LatPattern = bullHar OR bearHar; Lastpattern = LastValue(ValueWhen(LatPattern,IIf(BullGartley,1,IIf(BearGartley,-1,IIf(BullBat,2,IIf(BearBat,-2, IIf(BullButterfly,3,IIf(BearButterfly,-3,IIf(BullCrab,4,IIf(BearCrab,-4,Null)))))))))); PatternName = WriteIf(LastPattern == 1,"Bullish Gartley",WriteIf(LastPattern == -1,"Bearish Gartley",WriteIf(LastPattern == 2,"Bullish Bat", WriteIf(LastPattern == -2,"Bearish Bat",WriteIf(LastPattern == 3,"Bullish Butterfly",WriteIf(LastPattern == -3,"Bearish Butterfly", WriteIf(LastPattern == 4,"Bullish Crab",WriteIf(LastPattern == -4,"Bearish Crab","None")))))))); plotFractals = ParamToggle("Plot Fractals","Off|On",0); if(PlotFractals) { PlotShapes(shapeSmallCircle*P1,colorRed,0,H,10); PlotShapes(shapeSmallCircle*V1,colorBlue,O,L,-10); } GfxSetTextColor(IIf(LastPattern > 0, colorGreen,colorRed)); GfxTextOut("Last Pattern : " + PatternName,0,20); Filter = BullHar OR BearHar; Bull = BullHar; Bear = BearHar; Color = IIf(Bull,colorGreen,colorRed); AddColumn(IIf(Bull,1,IIf(Bear,-1,Null)),"Pattern",1.0,colorWhite,Color);