Amibroker AFL for stop and reversal Crossover Signal [SAR]

Code here AFL

_SECTION_BEGIN("Parabolic SAR Crossover"); Plot(C,"Close",colorBlack,64); uptrend=PDI()>MDI()AND Signal()PDI()AND Signal()>MACD(); Plot( 2, /* defines the height of the Market Trend in percent of pane width */"TREND", IIf( uptrend, colorGreen, IIf( downtrend, colorRed, 6 )), /* choose color */ styleOwnScale|styleArea|styleNoLabel, -0.5, 100 ); SetChartBkColor( ParamColor( "Outer panel",colorBlack) ); SetChartOptions(0,chartShowArrows|chartShowDates); NewDay = Day()!= Ref(Day(), -1); DH = HHV( H, NewDay); DL = LLV(L, NewDay); Plot(DH,"DAY HIGH",colorPaleGreen,ParamStyle("Style"),0,0,0); Plot(DL,"DAY LOW",colorPink,ParamStyle("Style"),0,0,0); R1=((DH-DL)*0.33)+DL; R2=((DH-DL)*0.66)+DL; Plot(R1,"BEARISH BELOW",colorYellow,styleDashed,0,0,0); Plot(R2,"BULLISH ABOVE",colorBrightGreen,styleDashed,0,0,0); accel = Param("Acceleration", 0.02, 0, 1, 0.001); mx = Param("Max. acceleration", 0.2, 0, 1, 0.001); F_SAR = SAR(accel,mx); colordots = IIf(F_SAR < L,colorGreen,IIf(F_SAR> H,colorRed,colorWhite)); Buy = Cross(C,F_SAR); Buy = Ref(Buy,-1); BuyPrice = O; Sell = Cross(F_SAR,C); Sell = Ref(Sell,-1); SellPrice = O; SetBarsRequired(-2,-2); SetChartOptions(0, chartShowDates); Plot(F_SAR,"\nF_SAR",colordots,styleDots|styleNoLine); PlotShapes(IIf(Buy,shapeUpArrow,shapeNone),colorBrightGreen,0,L,-15); PlotShapes(IIf(Buy,shapeHollowUpArrow,shapeNone),colorBrightGreen,0,L,-15); PlotShapes(IIf(Buy,shapeHollowCircle,shapeNone),colorBlue,0,BuyPrice,0); PlotShapes(IIf(Sell,shapeDownArrow,shapeNone),colorRed,0,H,-15); PlotShapes(IIf(Sell,shapeHollowDownArrow,shapeNone),colorRed,0,H,-15); PlotShapes(IIf(Sell,shapeHollowCircle,shapeNone),colorOrange,0,SellPrice,0);

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