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[EquisMetaStock Group] stdev and average



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Hi using stdev(roc(c,13,%),100) I can plot the stdev for roc over 100
periods. Is it possible though to plot the stdev of price data from
day 1. Eg say first 100 periods stdev = x, then 101 = x1, 102 = x2
etc. Basically adding a period recalculating stdev and plotting, but
retaining the day befores on the chart. Also how can I do the same but
this time calculate the average of the roc.
Regards Robert




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