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[WIP] MultiField_Stats Aggregation #16826

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wants to merge 11 commits into from
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[WIP] MultiField_Stats Aggregation #16826

wants to merge 11 commits into from

Commits on May 3, 2016

  1. [WIP] Correlation Aggregation 

    Adds the first Multi-Field metric agg that computes the Pearson product-moment correlation coefficient for a given list of numeric fields.
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    nknize committed May 3, 2016
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  2. Refactor CorrelationAggregation to MultiFieldStatsAggregation 

    This commit refactors the correlation specific aggregator to a more generic MultiFieldStats aggregator. It also adds the following statistics:

* Field Count (to capture missing values - not yet implemented)
* Mean
* Variance
* Skewness
* Kurtosis
* Variance-Covariance matrix
* Correlation
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  3. update aggregation name to multifield_stats

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  4. update MultiValuesSourceParser to parse a Map<String, Script> so each… 

    … script has a unique name
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    nknize committed May 3, 2016
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  5. add testEmptyAggregation

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  6. add unmapped, partiallyUnmapped, and getProperty tests

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    nknize committed May 3, 2016
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  7. finish out tests

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    nknize committed May 3, 2016
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  8. Updates from PR feedback 

    This commit fixes the following:

* Splits results from running statistics by way of mutable RunningStats and Immutable MultiFieldStatsResults classes
* Updates output to print stats per field
* Updates based on PR feedback
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  9. cleaning up wildcard imports and line length

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    nknize committed May 3, 2016
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  10. updates for elastic#17546

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    nknize committed May 3, 2016
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  11. rebasing with changes to master

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