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Without external help (dll), your chances of coding the ZigZag using
plain old MetaStock code are... zero, zilch.
Think about it - how will you look back in retrospect, find peaks &
troughs after they have passed by, using hindsight with MS code,
without help from any of the functions in the ZigZag class?
MetaStock processes data from left to right, and the only exceptions
are the LastValue() & ZigZag-type (Peak/Trough, etc) functions.
Forget forward-referencing functions (Ref(y,+x), DPO, etc.) because
this introduces null (N/A) bars.
Anyone that understands the basic way MetaStock handles data from left
to right, knows well enough to forget about re-inventing the wheel.
jose '-)
http://www.metastocktools.com
--- In Metastockusers@xxxxxxxxxxxxxxx, "Steve Grala" <stevegrala@xxxx>
wrote:
>
>
>
>
> Hi Roy
>
> I have been writing formulas for Metastock for 12 years. I
consider myself a very competent formula writer. I always wondered
how the zig zag formula was created. It seems straight forward
enough. I think if I spend enough time on it I could figure it out
totally. Part of the problem is that I am a active player in the
market and there just isn't enough time in the day. Thanks for being
honest with your limitations. If I come up with the formula I will
post it. For now I will just move on. Good luck to all and keep
building the most profitable trading system.
>
>
>
> Steve
>
>
> From: "Roy Larsen" <
> rlarsen@xxxx>
>
> Subject: Re: How to reproduce the zig zag formula
>
> Steve
>
> If you want to learn the formula language I suggest to you pick
another exercise. There are
> certainly enough to choose from. I'm not one to give up easily on
challenges, but ZigZag and SAR are
> two that have proved to be beyond me. Then there are others that
have, shall we say, been on the
> back-burner for a long time.
>
> Limitations with the formula language make it very difficult to
string an indeterminate number of
> lines together, particularly when they are not horizontal or equal
in pitch or length. When you can
> string just two lines together, such that one starts where the other
finishes, you'll have a better
> appreciation of the difficulties involved.
>
> For a competent programmer with access to the MetaStock Development
Kit it's probably a breeze, but
> for us mere mortals confined to the MetaStock Formula Language I
think this particular challenge
> should be left sitting out of sight in the "too hard" basket.
>
> Kind regards
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