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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@xxxxxxx>
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
>
>
>
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