Draw Automatic Butterfly Pattern for Amibroker AFL

BUTTERFLY PATTERN FOR AMIBROKER AFL

The Butterfly pattern is a reversal pattern composed of four legs, similar to the Gartley and Bat pattern, marked X-A, A-B, B-C and C-D. It helps you identify when a current price move is likely approaching its end. This means you can enter the market as the price reverses direction. There is a bullish version where you place a buy trade and a bearish version where you would place a sell trade.

What is the Butterfly Pattern?

The Butterfly pattern can be found near key market reversal points, usually at intermediate highs and lows. The appearance of the butterfly pattern indicates reversals when it is validated. The chart below gives an illustration of the Bullish and Bearish butterfly patterns.

The main rules of the Bullish and Bearish Butterfly patterns are as follows:

Butterfly Rules

AB can retrace up to 78.6% of the XA leg
BC can retrace between 38.2% – 88.6% of AB
CD can be an extension of 1.618% – 2.618% of AB
CD can also be an extension of up to 1.272% – 1.618% of XA leg
The point D is known as the PRZ or Potential Reversal Zone

From Point D, a trade can be entered with stops at or above (below) the price point at D.

Butterfly Target Levels

Once a position is entered at D, profits can be booked at 61.8% of CD with the second target at 127.2%. Despite the above rules, in real time such text book patterns that qualify every point of the swing legs do not form as expected, so traders should be a bit flexible while identifying the butterfly patterns.

Here is the Image of AFL [amibroker formula language].

HERE IS BUTTERFLY PATTERN FOR AMIBROKER AFL CODE

//------------------------------------------------------
//  Formula Name:      Butterfly pattern for amibroker afl by pipschart
//  Author	        :      KrT group
//  Up-loader	        :      www.pipschart.com
//  E-mail		:      info@pipschart.com
//  Amibroker Blog	:      www.pipschart.com/amibroker
//  Origin		:      Modified & Collected from different sources.
//----------------------------------------------------------

_SECTION_BEGIN(" KrT group Logo");
GfxSetBkMode(1);
X=750;
Y=1;
Font=10;
GfxSelectFont("Impact",Font*2.2, 550);GfxSetTextColor(colorRed);GfxTextOut

("KrT group",x,y);
GfxSelectFont("Impact",Font*2.2, 550);GfxSetTextColor(colorGreen);GfxTextOut

("RESEARCH",x+120,Y);

_SECTION_END();

//------------------------------------------------------------------------------

/*                     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


*/



_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);

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//------------------------------------------------------

// Formula Name: Butterfly pattern for amibroker afl by pipschart

// Author : KrT group

// Up-loader : www.pipschart.com

// E-mail : info@pipschart.com

// Amibroker Blog : www.pipschart.com/amibroker

// Origin : Modified & Collected from different sources.

//----------------------------------------------------------

_SECTION_BEGIN(" KrT group Logo");

GfxSetBkMode(1);

X=750;

Y=1;

Font=10;

GfxSelectFont("Impact",Font*2.2, 550);GfxSetTextColor(colorRed);GfxTextOut

("KrT group",x,y);

GfxSelectFont("Impact",Font*2.2, 550);GfxSetTextColor(colorGreen);GfxTextOut

("RESEARCH",x+120,Y);

_SECTION_END();

//------------------------------------------------------------------------------

/* 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

_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);

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How to use Automatic Butterfly Pattern for Amibroker AFL

Download the Automatic Butterfly Pattern for Amibroker AFL.
Now copy the afl file and paste it to \Program Files\AmiBroker\Formulas\Custom. [For 32 bit]
If You have 64 bit operating system than paste it to \Program Files(x86)\AmiBroker\Formulas\Custom.
Go to formula section of Amibroker and you will get the afl in Custom folder.

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Draw Automatic Butterfly Pattern for Amibroker AFL

BUTTERFLY PATTERN FOR AMIBROKER AFL

What is the Butterfly Pattern?

Butterfly Target Levels

Here is the Image of AFL [amibroker formula language].

HERE IS BUTTERFLY PATTERN FOR AMIBROKER AFL CODE

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How to use Automatic Butterfly Pattern for Amibroker AFL

Don’t Know How To Set Amibroker? Than Just Watch .

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