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Thank you very much Preston
I am going to give it a try. Actually I am trying to
emulate the Sigma Bands in the following website:
www.mktcycles.com
It seems to be a very good indicator to predict market
trend. If I ever manage to produce the Sigma Bands
with metastock, I would share it with everyone in this
group . This groups has definetely enhanced my
knowledge in Metastock.
Thank you again
Regards
Velawan
--- pumrysh <no_reply@xxxxxxxxxxxxxxx> wrote:
> velawan,
>
> I did an internet search and this is what I found.
>
> SINCE YOU MENTIONED HURST:
>
> What are centered moving average projections? This
> technique was
> taught by Hurst 30 years ago. It requires a charting
> program with the
> capability of offsetting moving averages in time. It
> involves first,
> identifying the cycle you want to measure by looking
> at past patterns
> using envelope analysis. Then take a simple moving
> average equal to
> the length of the cycle and center it in time by
> dropping it back
> half the number of days (hours, weeks, etc.) in the
> moving average.
> Next do the same with a moving average equal to one
> half the length
> of the cycle, i.e. drop it back in time by 1/2 the
> length of the
> moving average.
> Next take out a colored stock proctoscope, otherwise
> known as a
> marking pen, and draw extensions of the moving
> averages on your
> computer screen, fitting the projections to the
> price action beyond
> the end of the moving averages. Where the two lines
> cross is the
> halfway point of the move. Calculate the number of
> points to the
> price high or low preceding the projected crossover.
> Theoretically,
> the move should continue for the same distance
> beyond the projected
> crossover.
> Finally, get a clean piece of toilet paper, spit on
> it, and wipe off
> your computer screen. (The marker, remember?
> Actually, instead of the
> marker, you can use the line drawing tool. On
> livecharts, just draw
> the chart twice, leaving the first line on the
> screen when you draw
> the second one with the other moving average.)
>
>
> NEXT AN INTERESTING DISCUSSION OF MOVING AVERAGES
> HERE:
> http://www.adblue.de/cqg/movings.htm
>
>
> SO WHAT IS A CENTERED MOVING AVERAGE?
>
> Centered Moving Average
>
> With quarterly data a four term moving average
> cannot be centered
> properly. This is handled by a process known as
> centering. The
> moving average for the third quarter is calculated
> by summing
> quarters 1 through 4 and 2 through 5 and dividing
> the total by 8.
>
>
> A pretty good discription and seems pretty easy.
> Here's a shot at a 4
> day centered moving average:
>
> {1-4}(REF(C,-4)+REF(C,-3)+REF(C,-2)+REF(C,-))+
> {2-5}(REF(C,-3)+REF(C,-2)+REF(C,-1)+C)/8
>
> This is not very eloquent but it does make the
> point...that is you
> would be a day behind!
>
> Here's some more to think about.
>
>
> Detrended Price Oscillator
> The Detrended Price Oscillator is a technical
> indicator that smoothes
> the trend in prices. When price is detrended using
> the detrended
> price oscillator, many technicians believe that
> cycles and overbought
> and oversold levels can be more easily identified.
> The principal is
> similar to using longer length technical indicators
> rather than
> shorter length technical indicators. It removes some
> of the 'noise'.
> To calculate the detrended price oscillator an
> x-period moving
> average is centered. This is done by shifting the
> moving average back
> [(x/2) + 1] period. This centered moving average is
> then subtracted
> from the close. Because it is set up as an
> oscillator, it will cross
> above and below zero. The last [(x/2) + 1] period
> will have no value.
> This is because the detrended price oscillator is
> shifted back [(x/2)
> + 1] period. The detrended price oscillator may
> recognize underlying
> cyclical movements in price.
>
>
> Notice in the description above that the last period
> has no value.
>
> Hope all this helps...certainly was thought
> provoking!
>
> Preston
>
>
>
>
>
> --- In equismetastock@xxxxxxxxxxxxxxx, weerayah
> velawan
> <vela007_2000@xxxx> wrote:
> > Hi All
> >
> > Does anyone now the formula for Centred Moving
> > Average? If I am not mistaken it was used by Mr.
> Hurst
> >
> > Thank you and regards
> > velawan
>
>
>
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