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Alan,
Try this: load into indicator builder.
// % above or below Moving average
pds=10;
Price=Foreign("^VIX","C");
Mov_avg=EMA(price,pds);
z=((price / Mov_avg)- 1) * 100 ;
Cond=IIf(z >= 10,1,0) OR IIf(z <= -10,1,0);
PlotForeign("^VIX","VIX",colorBlack,styleCandle);
PlotShapes(IIf(Cond,shapeDigit1,shapeNone),colorRed);
//For AA window
Filter=1;
AddColumn(C,"close");
AddColumn(Mov_avg,"20ma");
AddColumn(z,"%");
Anthony
Alan Nouray wrote:
>  I am trying to write a formula that plot a shape (any shape) on the
> price graph when the difference between VIX and its 10day EMA is more
> than 10%.
>
> I came up with the following
>
> x=foreign("^VIX","C");
> y=ema(x,10);
>
> But I do not know how to write the code for the plotting the shape if
> the difference between VIX and its 10 day EMA is more than 10%.
>
> Alan
>
>
>
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