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The same question for EMA/AMA equivalent.
The AMA(C,a) will not touch AMA(C,10) when a is variable and a=10.
I do not think we may speak for equivalence...
x1=10;Plot(EMA(C,x1),"EMA10",1,1);
x2=20;Plot(EMA(C,x2),"EMA20",1,1);
a1=2/(x1+1);Plot(AMA(C,a1),"AMA10",4,8);
a2=2/(x2+1);Plot(AMA(C,a2),"AMA20",4,8);
x=10+Cum(1)%11;
a=2/(x+1);
Plot(AMA(C,a),"AMA",7,1);
Dimitris Tsokakis
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Dave,
>
> For variable period exponential smoothing simply use AMA:
>
> EMA( array, period_variable ) = >>> AMA( array, 2 / (
period_variable+1) );
>
> http://www.amibroker.com/guide/afl/afl_view.php?name=AMA
>
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Dave Merrill" <dmerrill@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Tuesday, October 14, 2003 2:39 PM
> Subject: [amibroker] MA, DEMA and TEMA can take array parameters,
but EMA can't?
>
>
> > it appears that you can pass an array, not just a single scalar
value, as
> > the range parameter to the built in MA, DEMA and TEMA functions,
but you
> > can't for EMA. am I right about this, or is there some other
problem in my
> > code?
> >
> > if that is true, it's too bad, and I hope this ability will be
added in the
> > future, hopefully soon. it's been said before that it would nice
to use
> > dynamic (array) parameters with all built in indicators, and
that's
> > definitely true, but EMA is a basic building block that I'd think
personally
> > was even more important to have.
> >
> > thanks,
> >
> > dave
> >
> >
> >
> > Send BUG REPORTS to bugs@xxxx
> > Send SUGGESTIONS to suggest@xxxx
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> >
> >
> >
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