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Another approach that does not use loops would be to use the AddToComposite
Function (ATC) as this will sum the specific event bar values and then you
can divide by a separate ATC that gives you the total number of such events.
I just love ATC!
Cheers,
Gordon Sutherland
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf
Of cdepuy
Sent: Tuesday, 29 April 2008 10:22 a.m.
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: calculating the mean of only some of the
observations in an array ?
Ara, thanks for responding. Actually what I'm trying to do is a
little different. Here is what the array might look like
signal hhv@xxxxxx avgofmyobsv
0 --
1 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 .05 .050
0 --
0 --
1 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 .06 .055
0 --
0 --
1 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 --
0 .07 .060
--- In amibroker@xxxxxxxxxxxxxxx, "Ara Kaloustian" <ara1@xxx> wrote:
>
> if you are using loops and you know when your signal was generated,
use that
> bar number as the starting poing point for your loop. Pick an end
point as
> you edesire.
>
> a = SignalBarNumber;
> b = Bars required in your calculation;
>
> for (i=a; i< a+b; i++)
> ...
>
> ----- Original Message -----
> From: "cdepuy" <cdepuy@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Monday, April 28, 2008 2:40 PM
> Subject: [amibroker] calculating the mean of only some of the
observations
> in an array ?
>
>
> > Without requiring loops that work through the whole barcount, can
> > someone point out to me how to exclude certain values in an array
> > when calculating a statistic across an array?
> >
> > I must be missing something. I am trying to calculate the mean of
> > some values that occur only occassionally (after my signal) using
> > Amibroker. But,what happens is all the values between my signals
get
> > included in the calculation. I know the solution is easy, but I
> > cannot figure it out.
> >
> > //figure highest value that occurs between my signals and the
> > next "x" following the signal
> > Cond6 = {some condition that i am investigating, like v > 5*ma
(v,50)
> > NumBars = 12;
> > hV = IIf(BarsSince(Cond6) == NumBars,HHV(H,BarsSince(Cond6))-
ValueWhen
> > (Cond6,C),Null);
> >
> > //now calculate the mean of all the hv 's that occur
> > mean = ma(hv,NumBars*50); //this line I am having trouble with
> > filter=1;
> > addcolumn(mean,"mean",1.2);
> > //then perform more statistics...(etc).
> >
> >
> >
> > ------------------------------------
> >
> > Please note that this group is for discussion between users only.
> >
> > To get support from AmiBroker please send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> > Yahoo! Groups Links
> >
> >
> >
>
------------------------------------
Please note that this group is for discussion between users only.
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SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
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Yahoo! Groups Links
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