[R] Moving standard deviation?
spencer.graves at pdf.com
Mon Dec 13 19:04:59 CET 2004
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doktora v wrote:
>Is there a simple function in R to get a moving standard deviation
>(i.e. for the last x samples)?
>My goal is to plot bollinger bands around a moving average for price
>data. I use kernel smoothing for the moving average.
>cheers and thanks!
>over and out
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