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Re: [amibroker] Re: EasyLanguage CountIf function



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=> Cum(Inside())  
 
Cum or inside has not a period/length of bars parameter?
 
while EasyLanguge's CountIf(_expression_, Length) can specify the Length, how can I similiarly control the Length when using the Cum?
 
Ref(Cum(Inside()), -Length)  ?  So it will Cum the Length bars only? Sorry I'm still rather newbie to AFL.


From: msc626 <dalmar78@xxxxxxxxxxxxx>
To: amibroker@xxxxxxxxxxxxxxx
Sent: Saturday, February 14, 2009 7:09:12 PM
Subject: [amibroker] Re: EasyLanguage CountIf function

Or Cum(Inside() );

daleb
> Thanks. Your formula should be right.
>
> The documentation of Sum is Sum(Array, Periods). I overlook that
"Low > Ref(Low,-1) AND High < Ref(High,-1) " is array of booleans which
is the beauty of AFL (I originally thought it was only boolean so
can't be applied to Sum).
>
> Thanks for help again.
>
>
>
> ____________ _________ _________ __
> From: Mike <sfclimbers@ ...>
> To: amibroker@xxxxxxxxx ps.com
> Sent: Saturday, February 14, 2009 3:30:51 PM
> Subject: [amibroker] Re: EasyLanguage CountIf function
>
>
> What about:
>
> InsideDays = Sum(Low > Ref(Low, -1) AND High < Ref(High, -1), Length);
>
> Mike
>
> --- In amibroker@xxxxxxxxx ps.com, "swstevewong38" <swstevewong38@ ...>
> wrote:
> >
> > New to Amibroker using it about a week.
> >
> > Translating a piece of code from EasyLanguge.
> >
> > InsideDays = CountIf(Low > Low[1] and High < High[1], Length);
> >
> > Think for a while maybe a combination of AFL's SUM, CUM, BarsSince
> > function can do, but still can't get the correct formula.
> >
> > Is there an equivalent way to express that CountIf in AFL without
> need
> > to write loop?
> >
> > Thanks.
> >
>




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