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[EquisMetaStock Group] Re: stdev and average



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I think Ive done it using Stdev(ROC(C, 13, % ), 2), I dont quite
understand how though. Igot to involved in th periods, thinking I it
would go something like, say 100 days of data, day 13 the roc kicks in
and the stdev would be for prev 13 days, next day would be for prev 14
days then 15 etc. Entering the period as 2 has done excactly the same.
Ive checked the calculation in excel. What Idont undestand is what is
the period part telling the stdev to do.
Regards Robert





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