[amibroker] Standard Deviation as an indicator

["droskill" <droskill@xxxxxxxxx>]

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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