you have to define the SAR function, see code below, regards, Ed
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,colorBrightGreen,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(C,"\nClose",colorWhite,64);
Plot(f_sar,"\nf_sar",colordots,styleDots|styleNoLine);
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);
----- Original Message -----
From: "Vinay Gakkhar." <[email protected]>
To: "Amibroker" <[email protected]>
Sent: Sunday, September 20, 2009 2:08 AM
Subject: [amibroker] Help with SAR function
> Learned senior members,
>
> I need help with the SAR function.
>
> I want a buy signal when SAR has received 2 green dots, and a sell signal
> when MFI has received 2 red dots.
>
> Can you please tell me what is wrong in the following formula? It is not
> showing me any result.
>
> acc = Param("Acceleration", 0.02, 0, 1, 0.001 );
> acc1 = Ref(Param("Acceleration", 0.02, 0, 1, 0.001 ),1);
> accm = Param("Max. acceleration", 0.2, 0, 1, 0.001 );
> accm1 = Ref(Param("Max. acceleration", 0.2, 0, 1, 0.001 ),1);
> BuySAR1 = (acc + acc1) ;// buy signal if 2 green dots have come already
> SellSAR1 = (accm + accm1) ;// Sell signal if 2 red dots have come already
>
>
>
> Many thanks.
>
> vgakkhar
>
>
>
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