Re: [amibroker] AFL help: Sell = Ref(exremspan (buy,10),-10);

[l washington <goldwing01_1999@xxxxxxxxx>]

same question here.

http://finance.groups.yahoo.com/group/amibroker/message/14340

answer here.
http://finance.groups.yahoo.com/group/amibroker/message/14378
kris45mar <kris45mar@xxxxxxxxx> wrote:

> Hello all:
>
> I stumbled across this code in the .chm files and this
> looks quite helpful. (message 32098)
>
> Sell=Ref( ExRemSpan( Buy, 10 ) ,-10);
>
> Could someone explain in English what this is doing?
>
> I am trying to code for an exit 10 bars after the
> first buy signal (even when there are subsequent buy
> signals) and this seems to be doing what I want. Now I
> just need to try and understand what it means.
>
> See also thread at
> http://www.reefcap.com/ubb/Forum49/HTML/000076.html
>
> ************
>
> Buysig = Cross(C , EMA(C,30));
> Sellsig = BarsSince(Buysig) == 10;
> //Buysig = ExRemSpan(Buysig,10);
> //Buysig = ExRem(Buysig, Sellsig); // line #3.
> intrade = Flip(Buysig, Sellsig);
> Buy = Buysig AND Ref(intrade, -1) == 0;
> Sell = Sellsig AND Ref(intrade,-1)
>  ;
> Sell=Ref( ExRemSpan( Buy, 10 ) ,-10);
>
> Plot(C,"",1,64);
> Plot(EMA(C,30),"",colorBlue,1);
> PlotShapes(shapeUpArrow * Buysig, colorLightBlue, 0 ,
> L , -10);
> PlotShapes(shapeUpArrow * Buy, colorBlue, 0, L, -20);
> PlotShapes(shapeDownArrow * Sellsig, colorPink, 0, H,
> -20);
>
> PlotShapes(shapeDownArrow * Sell, colorRed, 0, H,
> -10);
> Plot(intrade,"intrade", IIf(1,colorGreen, colorPink),
> styleHistogram | styleOwnScale);
>
> ***************
>
>
>
> Any help appreciated
>
> Regards
>
> ChrisB
>
>
>
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