Small bug in WeightedRunningAverage; add WeightedRunningAverageAndStdDev
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Key: MAHOUT-630
URL: https://issues.apache.org/jira/browse/MAHOUT-630
Project: Mahout
Issue Type: Bug
Components: Collaborative Filtering
Affects Versions: 0.4
Reporter: Sean Owen
Assignee: Sean Owen
Priority: Minor
Fix For: 0.5
There's a problem in the WeightedRunningAverage handling of a new weighted
datum. While looking at that I said, hey, we could use
WeightedRunningAverageAndStdDev to go with it. And some tests.
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