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----- Original Message -----
<DIV
>From:
<A title=steve2@xxxxxxxxxxxxxxxxxxxx
href="">Steve Almond
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">Ami
Sent: Wednesday, February 11, 2004 10:10
AM
Subject: [amibroker] Sigma Bands
Has anyone managed to write the AFL code for Sigma bands? It seemed
simple, but was beyond me...
It's not quite as simple as it
looks. The key issue is the centerline. The commercial plots use a
4th order (or more?) polynomial. Beyond that (and not too difficult) the
sigma bands are not standard deviations of the price but of the percent
deviation from the centerline. What to use for the centerline is the
puzzlement.
Here is a reference: <A
href="">http://www.forextrm.com/faq.htm and
a picture:
<IMG alt="" hspace=0
src="gif00034.gif" align=baseline
border=0>Send BUG REPORTS to <A
href="">bugs@xxxxxxxxxxxxxSend SUGGESTIONS to
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AmiQuote-related messages ONLY to: <A
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Send BUG REPORTS to bugs@xxxxxxxxxxxxx
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