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Add function for standard deviation #515

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grobie opened this Issue Feb 7, 2015 · 5 comments

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@grobie @brian-brazil @beorn7
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grobie commented Feb 7, 2015

In statistics, the standard deviation (SD) (represented by the Greek letter sigma, σ) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.
-- http://en.wikipedia.org/wiki/Standard_deviation

Graphite calls it stdev. Influxdb stddev.
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brian-brazil commented Feb 7, 2015

I'd go for stddev, and add stdvar while we're at it.

Should we have over_time versions too?
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grobie commented Apr 16, 2015

Solved with #641.

@grobie grobie closed this Apr 16, 2015

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beorn7 commented Apr 17, 2015

So no over_time version?
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brian-brazil commented Apr 17, 2015

I'd say wait for a use case to appear.
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This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

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