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GP,
Not sure if you can do that in Perferences. It looks like you can by
using the short term ma. But here is a quick and easy afl.
Length= 10;
StdDevUp= 2;
UpBand=BBandTop(Close,Length,StdDevUp);
StdDevDn= 2;
DnBand=BBandBot(Close,Length,StdDevDn);
Buy=C>UpBand;
Sell=Close < MA(Close,Length);
Short=Close < DnBand;
Cover=Close > MA(Close,Length);
Buy=ExRem(Buy,Sell);
Sell=ExRem(Sell,Buy);
Short=ExRem(Short,Cover);
Cover=ExRem(Cover,Short);
Plot(C,"",1,64);
Plot(UpBand,"",2,1);
Plot(DnBand,"",3,1);
PlotShapes(IIf(Buy,shapeUpArrow,shapeNone) ,colorBrightGreen,0);
PlotShapes(IIf(Sell,shapeDownArrow,shapeNone),colorRed,0);
PlotShapes(IIf(Short,shapeDownArrow,shapeNone),colorOrange,0);
PlotShapes(IIf(Cover,shapeUpArrow,shapeNone) ,colorBlue,0);
Enjoy!
John
- In amibroker@xxxxxxxxxxxxxxx, "George Poulos" <globalgreek@xxxx>
wrote:
>
> I am wondering how to set the standard deviation value of the
> Bolinger Bands. For example 10 period moving average(value of the
> short term m/a in the preferences?) and standard deviation of 2??
>
> TIA
> GP
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