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Zerolag Tema System for Amibroker (AFL)

_SECTION_BEGIN("Heikin Ashi");
function ZeroLagTEMA( array, period ) 
{ 
 TMA1 = TEMA( array, period ); 
 TMA2 = TEMA( TMA1, period ); 
 Diff = TMA1 - TMA2; 
 return TMA1 + Diff ; 
} 

/////////////////////// Heikin-Ashi code 
HaClose = (O+H+L+C)/4; 
HaOpen = AMA( Ref( HaClose, -1 ), 0.5 ); 

avp = Param("Up TEMA avg", 34, 1, 100 ); 
avpdn = Param("Dn TEMA avg", 34, 1, 100 ); 

// Velvoort is using not original, but modified Heikin-Ashi close 
HaClose = ( HaClose + HaOpen + Max( H, HaOpen ) + Min( L, HaOpen ) )/4; 

// up average 
ZlHa = ZeroLagTEMA( HaClose, avp ); 
ZlCl = ZeroLagTEMA( ( H + L ) / 2, avp ); 
ZlDif = ZlCl - ZlHa; 

keep1 = Hold( HaClose >= HaOpen, 2 ); 
keep2 = ZlDif >= 0; 
keeping = keep1 OR keep2; 
keepall = keeping OR ( Ref( keeping, -1 ) AND ( C > O ) OR C >= Ref( C, -1 ) ); 
keep3 = abs( C - O ) < ( H - L ) * 0.35 AND H >= Ref( L, -1 ); 
utr = keepall OR ( Ref( keepall, -1 ) AND keep3 ); 

// dn average 
ZlHa = ZeroLagTEMA( HaClose, avpdn ); 
ZlCl = ZeroLagTEMA( ( H + L ) / 2, avpdn ); 
ZlDif = ZlCl - ZlHa; 

keep1 = Hold( HaClose < HaOpen, 2 ); 
keep2 = ZlDif < 0; 
keeping = keep1 OR keep2; 
keepall = keeping OR ( Ref( keeping, -1 ) AND ( C < O ) OR C < Ref( C, -1 ) ); 
keep3 = abs( C - O ) < ( H - L ) * 0.35 AND L <= Ref( H, -1 ); 
dtr = keepall OR ( Ref( keepall, -1 ) AND keep3 ); 

upw = dtr == 0 AND Ref( dtr, -1 ) AND utr; 
dnw = utr == 0 AND Ref( utr, -1 ) AND dtr; 

Haco = Flip( upw, dnw ); 


if( ParamToggle("Chart Type", "Price with color back|HACO wave" ) ) 
{ 
 Plot( Haco, "Haco", colorRed ); 
} 
else 
{ 
 Plot( C, "Close", colorBlack, ParamStyle( "Style", styleCandle, maskPrice ) ); 
 Plot( 1, "", IIf( Haco , colorPaleGreen, colorPink ), styleArea | styleOwnScale| styleNoLabel, 0, 1 ); 
}


def_Buy = GetFnData("Beta")>1.1 AND V>1000 AND V>EMA(V,50) AND Close>10;
def_Sell =GetFnData("Beta")>1.1 AND V>1000 AND V>EMA(V,50) AND Close>10;


//Buy  =  def_Buy AND Flip(upw,dnw) AND Ref(Flip(dnw,upw),-1);
//Sell =  def_Sell AND Flip(dnw,upw) AND Ref(Flip(upw,dnw),-1);


sector = SectorID(1);
industry = IndustryID(1);



//...........................................
Haco=Flip(upw,dnw);
 
hc = Haco - Ref(Haco,-1);hc = Ref(hc,-1);
Buy = IIf(hc == 1,1,0); BuyPrice = O;
Sell = IIf(hc == -1,1,0); SellPrice = O;
Cover = Buy; CoverPrice = O;
Short = Sell; ShortPrice = O;
 Filter = Buy OR Sell;

PlotShapes(IIf(Buy,shapeUpArrow,shapeNone),colorGreen,0,L,-15);
PlotShapes(IIf(Buy,shapeHollowUpArrow,shapeNone),colorWhite,0,L,-15);
PlotShapes(IIf(Buy,shapeHollowSmallCircle,shapeNone),colorWhite,0,BuyPrice,0);
 
PlotShapes(IIf(Sell,shapeDownArrow,shapeNone),colorRed,0,H,-15);
PlotShapes(IIf(Sell,shapeHollowDownArrow,shapeNone),colorWhite,0,H,-15);
PlotShapes(IIf(Sell,shapeHollowSmallCircle,shapeNone),colorWhite,0,SellPrice,0);
 
PlotShapes(IIf(Short,shapeDownTriangle,shapeNone),colorYellow,0,H,IIf(Short AND Sell,-30,-15));
PlotShapes(IIf(Short,shapeHollowDownTriangle,shapeNone),colorWhite,0,H,IIf(Short AND Sell,-30,-15));
PlotShapes(IIf(Short,shapeHollowCircle,shapeNone),colorWhite,0,ShortPrice,0);
 
PlotShapes(IIf(Cover,shapeUpTriangle,shapeNone),colorLightBlue,0,L,IIf(Cover AND Buy,-30,-15));
PlotShapes(IIf(Cover,shapeHollowUpTriangle,shapeNone),colorWhite,0,L,IIf(Cover AND Buy,-30,-15));
PlotShapes(IIf(Cover,shapeHollowCircle,shapeNone),colorWhite,0,CoverPrice,0);
 

AddColumn(IIf(Buy, 66,IIf(Sell, 83,Null )),"Buy/Sell",formatChar,IIf(Buy,colorGreen,IIf(Sell,colorRed,colorDefault)),colorDefault,width = 60);
AddColumn(C,"Close",0,IIf(C>Ref(C,-1),colorGreen,IIf(C<Ref(C,-1),colorRed,colorBlue)));
AddColumn(ROC(C,1),"Change %",0,IIf(C>Ref(C,-1),colorGreen,IIf(C<Ref(C,-1),colorRed,colorBlue)));
AddColumn(V,"Volume",1.0,IIf(V>Ref(V,-1)AND C>Ref(C,-1),colorGreen,IIf(V>Ref(V,-1)AND C<Ref(C,-1),colorRed,colorBlue)),colorDefault);
AddColumn(GetFnData("Beta"),"Beta");
AddTextColumn(Sector,"Sector Name" );
AddTextColumn(Industry,"Industry Name");  
AddColumn(GetFnData("InsiderHoldPercent"),"Insider Hold Percent");
AddColumn(GetFnData("InstitutionHoldPercent"),"Institution Hold Percent"); 
_SECTION_END();

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