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Ir.
I try this formula in the ind. builder but have a "does not a executable
formula" message. May be something is wrong, by the way what means "prev",
previous value of indicator ? perhaps the mistake is there. I'l aprecciate
some help
Thanks
J.Carlos
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> From: Ir. Yuwono Thamrin <satria@xxxxxxxxxxxx>
> To: metastock-list@xxxxxxxxx
> Subject: AMA Kaufman
> Date: Quinta-feira, 21 de Agosto de 1997 11:49
>
>
> Name : Adaptive Moving Average Indicator
> Notes: From "Smarter Trading" by Kaufman
> Desc : An exponential moving average in which the smoothing
> factor varies with the "efficiency ratio". Efficiency
> ratio is the ratio of total price excursion divided by
> the sum of all individual excursions of each bar. It
> equals 1.0 if all moves are in one direction over the lookback
> period.
> By: Ir. Yuwono Th., translated into MSWIN 6.0 formulas from
> Bob Fulks' ELA based upon code and descriptions in Kaufman's
book
>
> _diff
> Abs(C-Ref(C,-1)) {Individual price excursions}
>
> _signal
> Abs(C-Ref(C,-10)) {Total Excursion over period}
>
> _noise
> Sum(Fml("_dif"),10) { Sum all individual excursions}
>
> _efratio
> Fml("_signal")/Fml("_noise") {Efficiency Ratio}
>
> _smooth
> Power(Fml("_efratio")*(0.666-0.0645)+0.0645, 2)
> {Shortest smoothing=0.666, Longest
> smoothing=0.0645}
>
> _AMA
> PREV + Fml("_smooth")*(C-PREV)
>
> Notes: These are constructed using 10 periods, you can alter this
> by replacing every entry of 10 with the desired time period.
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