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ST GAP BUY SELL





 _SECTION_BEGIN("st gap buy sell");

Plot( C, "Close", ParamColor("Color", colorDefault ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() );

SetBarsRequired(sbrAll,sbrAll);
xx=BarIndex();x=xx;Lx=LastValue(x);
rightStrength=Optimize("R_S",Param("R_S",3,1,50,1) ,1,50,1);
leftStrength=Optimize("L_S",Param("L_S",3,1,50,1), 1,50,1);

function pkID(rightStrength,leftStrength)
{
pk=H>Ref(HHV(H,leftStrength),-1) AND H>=Ref(HHV(H,rightStrength),rightStrength);
return pk;
}
function trID(rightStrength,leftStrength)
{
tr=L<Ref(LLV(L,leftStrength),-1) AND L<=Ref(LLV(L,rightStrength),rightStrength);
return tr;
}

pk=pkID(rightStrength,leftStrength);
tr=trID(rightStrength,leftStrength);

SetChartBkColor(ColorRGB(0,0,0));SetChartOptions(0 ,chartShowDates);
SetBarFillColor(IIf(C>O,colorGreen,IIf(C<=O,colorRed,colorLightGrey)));

pkHigh1=Ref(ValueWhen(pk,H,1),-(rightStrength+1));
trLow1=Ref(ValueWhen(Tr,L,1),-(rightStrength+1));
pkHigh0=ValueWhen(pk,H,0);
trLow0=ValueWhen(Tr,L,0);

//Plot(pkHigh1,"",colorBlue,24,Null,Null,0,2,1);
//Plot(trLow1,"",colorRed,24,Null,Null,0,2,1);

Buy = Cross(C,pkhigh1) ;
sell = cross(trlow1,c) ;

Buy = ExRem(Buy,Sell);
Sell = ExRem(Sell,Buy);

Buy[BarCount-1]=Null;
Sell[BarCount-1]=Null;

Cover=Buy;
Short=Sell;

shape = Buy * shapeUpArrow + Sell * shapeDownArrow;
PlotShapes( shape, IIf( Buy, colorWhite, colorWhite ),0, IIf( Buy, Low, High ) );
_SECTION_END();

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