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https://issues.apache.org/jira/browse/MAHOUT-1936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15855309#comment-15855309
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Hudson commented on MAHOUT-1936:
--------------------------------
FAILURE: Integrated in Jenkins build Mahout-Quality #3416 (See
[https://builds.apache.org/job/Mahout-Quality/3416/])
MAHOUT-1936 fix AsFactor allReduce block closes apache/mahout#278 (rawkintrevo:
rev 60bb751926524b62be52f9b4c9d1c70d735a0afc)
* (edit)
math-scala/src/main/scala/org/apache/mahout/math/algorithms/preprocessing/AsFactor.scala
> FactorMap finds column maximums incorrectly on large data sets
> --------------------------------------------------------------
>
> Key: MAHOUT-1936
> URL: https://issues.apache.org/jira/browse/MAHOUT-1936
> Project: Mahout
> Issue Type: Bug
> Components: Algorithms
> Affects Versions: 0.13.0
> Reporter: Trevor Grant
> Assignee: Trevor Grant
> Fix For: 0.13.0
>
>
> FactorMap's fit method does not properly find the maximum of the column.
> Likely due to an impropper allreduceBlock here
> https://github.com/apache/mahout/blob/master/math-scala/src/main/scala/org/apache/mahout/math/algorithms/preprocessing/AsFactor.scala#L40
> Also, factorMap in this instance might be more appropriately named "factorMax"
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