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Add Standard Deviation to Measure-Object output #2358
Description
Activity
This requires a double iterate: first, to calculate the mean value, the second, to calculate the variance.
Now Measure-Object don't collect values for second iterate. It is too complicate the cmdlet.
Also there's the challenge of the accuracy of the calculations for real data.
I believe this is a task for specialized statistical module.Ilya (@iSazonov) I'd turn the argument around: Give me something easy and useful as a built in tool, and write a specialized statistical module if you want higher accuracy or better performance.
Fixed in #6238
Standard Deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values. A low standard deviation indicates that the data points tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the data points are spread out over a wider range of values.
This is a commonly used to get an insight about a set of values, and would be easy to implement as an addition to Measure-Object.