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Head & Shouders for Amibroker (AFL)
pvsy
almost 9 years ago
Amibroker (AFL)

Rating:
2 / 5 (Votes 4)
Tags:
amibroker, exploration, pattern

Head & Shouders pattern finder.

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Indicator / Formula

Copy & Paste Friendly
_SECTION_BEGIN("Head & Shouders Pattern");
// Set Background
SetChartBkGradientFill(ParamColor("Bg Top",colorWhite),ParamColor("Bg Bottom",colorLightYellow));

//
x = Cum(1);
per = 5;
back = 50;
inter = 100;
s11 = H;
s12 = L;
//-------------------------------------------------------------------------------------------------
/* H & S */
pR = PeakBars( s11, per, 1 ) == 0;
endt1 = LastValue(ValueWhen( pR, x, 1 ));
medt1 = LastValue(ValueWhen( pR, x, 2 ));
startt1= LastValue(ValueWhen( pR, x, 3 ));
dt1 = endt1-startt1;
C1 = x==endt1 OR x==medt1 OR x==startt1;
endR = LastValue(ValueWhen( pR, s11, 1 ) );
medR = LastValue(ValueWhen( pR, s11, 2 ) );
startR = LastValue( ValueWhen( pR, s11, 3 ));
//
Filter1 = medR>endR AND medR>startR AND abs(startR-endR)<0.02*(startR+endR) AND dt1<inter AND endt1>LastValue(x)-back;
MaxGraph = 10;
Graph1 = C;
Graph1Style=64;
GraphXSpace=5;

/*H&S Neck Line*/

Aper = medt1-startt1;
bper = endt1-medt1;
La = LastValue(ValueWhen(x==medt1,LLV(L,Aper)));
Lb = LastValue(ValueWhen(x==-1+endt1,LLV(L,bper)));
Fa=L==La AND x>startt1 AND x<medt1;
Fb=L==Lb AND x>medt1 AND x<endt1;
endt = LastValue(ValueWhen( Fb, x ));
startt = LastValue(ValueWhen( Fa, x ));
dtS = endt-startt;endS = Lb;startS = La;
aS = (endS-startS)/dtS;bS = endS;
trendlineS= aS * ( x -endt ) + bS;
Graph3 = IIf(Filter1 AND x>startt-5,trendlineS,-1e10);Graph3BarColor=5;
//-------------------------------------------------------------------------------------------------
/*Inverted H & S*/

tpR = TroughBars( s12, per, 1 ) == 0;
tendt1 = LastValue(ValueWhen(tpr,x,1));
tmedt1 = LastValue(ValueWhen(tpr,x,2));
tstartt1 = LastValue(ValueWhen(tpr,x,3));
tdt1 = tendt1-tstartt1;
C2 = x==tendt1 OR x==tmedt1 OR x==tstartt1;
tendR = LastValue(ValueWhen( tpR, s12, 1 ) );
tmedR = LastValue(ValueWhen( tpR, s12, 2 ) );
tstartR = LastValue( ValueWhen( tpR, s12, 3 ));
//
Filter2=tmedR<tendR AND tmedR<tstartR AND abs(tstartR-tendR)<0.02*(tstartR+tendR) AND tdt1<inter AND tendt1>LastValue(x)-back;
Graph1BarColor=IIf(C1 AND Filter1,colorWhite,IIf(C2 AND Filter2,10,1));

/*Inverted H&S Neck Line*/

tAper = tmedt1-tstartt1;tbper=tendt1-tmedt1;
Ha = LastValue(ValueWhen(x==tmedt1,HHV(H,tAper)));
Hb = LastValue(ValueWhen(x==-1+tendt1,HHV(H,tbper)));
tFa = H==Ha AND x>tstartt1 AND x<tmedt1;
tFb = H==Hb AND x>tmedt1 AND x<tendt1;
Rendt = LastValue(ValueWhen(tFb, x ));
Rstartt = LastValue(ValueWhen( tFa, x ));
Rdt = Rendt-Rstartt;endR = Hb;startR = Ha;
aR = (endR-startR)/Rdt;bR = endR;
trendlineR= aR * ( x -Rendt ) + bR;
Graph4 = IIf(Filter2 AND x>Rstartt-5,trendlineR,-1e10);Graph4BarColor=10;
Filter = Filter1 OR Filter2;
//
NumColumns= 2;/*Graph2=x==-1+tendt1;*/
Column0 = Filter1;
Column1 = Filter2;
Column0Format=Column1Format=1.0;
Column0Name="H&S";
Column1Name="inv H&S";
//-------------------------------------------------------------------------------------------------
Title = EncodeColor(colorGold)+Name()+" - "+EncodeColor(colorBrightGreen)+FullName()+"\n "+
EncodeColor(colorGold)+StrFormat(" - Open %g, Hi %g, Lo %g, Close %g ",O,H,L,C )+EncodeColor(colorRed)+" - "+Date()+
" - Volume :"+WriteVal(V,1.0);
_SECTION_END();

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