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Posted to dev@mahout.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2017/02/27 05:26:46 UTC

[jira] [Commented] (MAHOUT-1925) Cochrane-Orcutt should optionally calculate dwstat

    [ https://issues.apache.org/jira/browse/MAHOUT-1925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885157#comment-15885157 ] 

Hudson commented on MAHOUT-1925:
--------------------------------

FAILURE: Integrated in Jenkins build Mahout-Quality #3430 (See [https://builds.apache.org/job/Mahout-Quality/3430/])
[MAHOUT-1924][MAHOUT-1925] Add DW and Unit Tests to CochraneOrcutt (rawkintrevo: rev d848625df7144ef14dd90300adcf253f08aa28e4)
* (edit) math-scala/src/test/scala/org/apache/mahout/math/algorithms/RegressionSuiteBase.scala
* (edit) math-scala/src/main/scala/org/apache/mahout/math/algorithms/regression/CochraneOrcuttModel.scala
* (edit) math-scala/src/main/scala/org/apache/mahout/math/algorithms/regression/RegressorModel.scala
* (edit) math-scala/src/main/scala/org/apache/mahout/math/algorithms/regression/LinearRegressorModel.scala
* (edit) math-scala/src/main/scala/org/apache/mahout/math/algorithms/regression/OrdinaryLeastSquaresModel.scala


> Cochrane-Orcutt should optionally calculate dwstat
> --------------------------------------------------
>
>                 Key: MAHOUT-1925
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1925
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Algorithms
>    Affects Versions: 0.13.0
>            Reporter: Trevor Grant
>            Assignee: Trevor Grant
>              Labels: beginner
>             Fix For: 0.13.0
>
>
> The Cochrane Orcutt procedure should optionally calculate the Durbin Watson test statistic on each iteration and save it to an array in a similar way to how the betas of each iteration are done currently.
> Further- Cochrane Orcutt should terminate early if Durbin Watson test statistic is within acceptable range. 



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