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The PolyFit & GaussianElimination Functions use only the data you
pass it ...
The Demo Main AFL was set up to use Beg & End Range markers but you
can easily change those to whatever you like.
The extrapolations are only calculated once the fit as of some bar
has been done. If you click CHECK it will probably say that it does
look forward but that is only because one the arrays is purposely
down shifted so that extrapolation values can be calculated beyond
the most current bar prior to plotting them shifted into the
future ... It does not look forward at all.
--- In amibroker@xxxxxxxxxxxxxxx, "Chris DePuy" <cdepuy@xxx> wrote:
>
> Fred,
> Thank you for sharing.
> To what extent does this code look forward, may i ask?
> Chris
>
> ----- Original Message -----
> From: Fred Tonetti
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: Tuesday, October 03, 2006 3:29 PM
> Subject: [amibroker] Polynomial Trendlines
>
>
> There seemed to be some interest in this sort of thing the other
day ...
>
> This one I can publish since it's not tied to any copyrighted
material I am
> aware of ...
>
> It will calculate a nth ( 1 - 8 ) Order Polynomial Fit of
whatever data you
> toss it using Gaussian Elimination for simultaneous solution of
multiple
> linear equations. As demonstrated in the small contained main AFL
It can
> extrapolate forward and/or backwards
>
> <http://www.amibroker.com/library/detail.php?id=731>
> http://www.amibroker.com/library/detail.php?id=731
>
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