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Ed,
Yea, I noticed that the original code did not match the intent accurately.
Your updated code was not what I was planning to do, but it is definitely more elegant. Still not
thinking in terms of array :).
Thanks for the code suggestion.
tomas
--- emp62 <emp62@xxxxxxx> wrote:
> you have to set your mind to think in terms of arrays.
>
> I changed the code somewhat. You requested: " .... and the volume for those down days was below
> average (50 day)".
> This I coded like: AND MA(V,3) < MA(V,50)
>
> but should be: AND HHV(V,3) < MA(V,50) which will be true if the highest volume of the last 3
> bars is less then MA-50.
>
> so the code becomes:
>
>
> condition = BarsSince( C > Ref(C,-1)) == 3 AND HHV(V,3) < MA(V,50);
>
> WriteVal(LLV(V,3));
> WriteVal(MA(V,50));
>
> Buy = Ref(condition,-1); BuyPrice = O;
>
> SetChartOptions(0, chartShowDates);
> Plot(C,"C",1,64);
> PlotShapes(IIf(Buy,shapeUpArrow,0),colorWhite, layer = 0, yposition = BuyPrice, offset = 0 );
>
>
>
>
>
> ----- Original Message -----
> From: "Tomas" <tomas986@xxxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, April 05, 2006 5:41 AM
> Subject: Re: [amibroker] Simple Question : How do I specify the previous day's price
>
>
> > Thanks Ed!!
> >
> > I can see that this is going to take me awhile to learn AFL. Damn, I thought I am an engineer
> > with programming experience, so would not have difficulty getting use to AFL. That does not
> seem
> > to be the case...
> >
> > Ok, back to reading the User Guide and more examples...
> >
> >
> > thanks again Ed,
> > tomas
> >
> >
> > --- emp62 <emp62@xxxxxxx> wrote:
> >
> >> you can code that like:
> >>
> >> condition = BarsSince( C > Ref(C,-1)) == 3 AND MA(V,3) < MA(V,50);
> >>
> >> Buy = Ref(condition,-1); BuyPrice = O;
> >>
> >> SetChartOptions(0, chartShowDates);
> >> Plot(C,"C",1,64);
> >> PlotShapes(IIf(Buy,shapeUpArrow,0),colorWhite, layer = 0, yposition = BuyPrice, offset = 0 );
>
> >>
> >>
> >> rgds, Ed
> >>
> >>
> >> ----- Original Message -----
> >> From: "Tomas" <tomas986@xxxxxxxxx>
> >> To: <amibroker@xxxxxxxxxxxxxxx>
> >> Sent: Monday, April 03, 2006 1:43 AM
> >> Subject: [amibroker] Simple Question : How do I specify the previous day's price
> >>
> >>
> >> > Hi,
> >> >
> >> > I just registered Amibroker a week ago, and in the process of testing out some of the
> >> features.
> >> >
> >> > I spent the last few hours trying to figure this issue out, but have no luck. This is a
> >> simple
> >> > thing, but the array concept of AFL is a little confusing to me.
> >> >
> >> > My issue is that I want to write simple buy signal that goes like this:
> >> >
> >> > Buy:
> >> > - when the has been three down days in a row
> >> > - and the volume for those down days was below average (50 day)
> >> >
> >> > How would you right an AFL buy signal for that?
> >> >
> >> > My problem is that I don't know how to specify the previous day's price and previuos,
> previous
> >> > day's price.
> >> >
> >> > Thanks for the help in advance.
> >> > tomas
> >> >
> >> >
> >> >
> >> > __________________________________________________
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> >> >
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> >> >
> >
> >
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