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see https://gist.github.com/1886960 for an algorithm to handle calculating standard deviation and variance across many servers.

is related to

DRIVERS-234 Aggregation Builder Support for 3.2

related to

SERVER-38851 Replace assert.close() with separate functions for integer and floating point closeness

CSHARP-1367 $stdDev aggregation operator for standard deviation

JAVA-1935 $stdDev aggregation operator for standard deviation

links to

https://github.com/mongodb/mongo/pull/464

(1 links to)

Assignee:: Mathias Stearn
Reporter:: Mathias Stearn
Participants:: auto, Chris Westin, Githook User, Himanshu Jain, Justin, Kevin Davenport [X], Mathias Stearn, Matt Kangas, Michael Svendsen, Ranjith Ramachandra
Votes:: 25 Vote for this issue
Watchers:: 25 Start watching this issue