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[amibroker] Re: Standard Deviation as an indicator



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Trading Reference Links

You'll understand more about what you're trading if you don't 
normalize the data in the first place.

--- In amibroker@xxxxxxxxxxxxxxx, "jeffro861" <jeffro861@xxx> wrote:
>
> 1.  take the log of the price data (newpriceseries=log(c)), so that 
> the price distribution is better normalized.  2.  do everything 
like 
> you have been told from here except use the new logged series as 
your 
> price series.
> 
> 
> 
> --- In amibroker@xxxxxxxxxxxxxxx, "droskill" <droskill@> wrote:
> >
> > So would this apply to the price data or the BB?
> > 
> > --- In amibroker@xxxxxxxxxxxxxxx, "jeffro861" <jeffro861@> wrote:
> > >
> > > I couldn't help myself... might as well take the natural log of 
> the 
> > > price series you're dealing with-- price data follows more of a 
> log 
> > > distribtion than a normal distribution (log(c)).  This become 
> more 
> > > apparent in parabolic moving stocks and longer time frames for 
> > > calculating std. dev.  There are other ways to deal with the 
> > > asymetric price distributions, but that is entirely too much 
> > > explanation for this dialogue.
> > > 
> > > good luck
> > > 
> > > 
> > > > Hey all - I'm trying to put together an indicator based on 
> Standard
> > > > Deviation.  The difference, from, say Bollinger Bands in this 
> case 
> > > is
> > > > that I want to show the Std Dev from a moving average in 
terms 
> of 
> > > 1,2)
> > > 
> > > > and 3 standard deviations from mean, where mean is an N day 
> moving
> > > > average.  So, the mean would be represented by a constant 
> straight
> > > > line on a chart, and then a line would go up/down around it.
> > > > 
> > > > For an example, check this out:
> > > > http://www.indexindicators.com/charts/sp500-vs-sp500-50d-rsma-
> > > params-3y-x-x/
> > > > 
> > > > I really don't know how to approach this - anybody have any
> > > > thoughts/ideas?  Or maybe someone has done it before (or it's 
> in AB
> > > > already) and I just haven't found it.
> > > > 
> > > > Thanks!
> > > >
> > >
> >
>



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