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> Wes - I think you are missing the fundamental basis of the system.
> The first parameter (7), as has been mentioned here before, is
> looking back 1 day to the *same* time period for the roc calc.
> I suggest you look at an hourly bar chart of the $adv.
> It is not a normal price series like a stock or future, is it?
> Virtually every single day the closes rise from a low number to a
> higher number. There is no carryover from ther previous day -
> each day begins fresh at 0. This is about as cyclical as you can get.
> Using 7 in effect filters out the massive cyclic nature of $adv to
> return a tradable signal. Any other number *radically* changes the
> dynamics. If you want to optimize, then the last 2 values are the
> only logical ones to mess with.
>
> rich
Rich,
I believe that you answered the question as to why "7" has any significance
over "5"! Thank you.
Sincerely,
Wes Williams
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