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https://issues.apache.org/jira/browse/MAHOUT-1971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980095#comment-15980095
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Hudson commented on MAHOUT-1971:
--------------------------------
SUCCESS: Integrated in Jenkins build Mahout-Quality #3479 (See
[https://builds.apache.org/job/Mahout-Quality/3479/])
MAHOUT-1971 Aggregate Transpose Bug closes apache/mahout#307 (rawkintrevo: rev
08e02602e947ff945b9bd73ab5f0b45863df3e53)
* (edit) spark/src/main/scala/org/apache/mahout/sparkbindings/blas/At.scala
* (edit)
flink/src/main/scala/org/apache/mahout/flinkbindings/blas/FlinkOpAt.scala
* (edit)
spark/src/test/scala/org/apache/mahout/sparkbindings/drm/DrmLikeSuite.scala
* (edit)
flink/src/test/scala/org/apache/mahout/flinkbindings/DrmLikeOpsSuite.scala
> Aggregate Transpose Bug
> -----------------------
>
> Key: MAHOUT-1971
> URL: https://issues.apache.org/jira/browse/MAHOUT-1971
> Project: Mahout
> Issue Type: Bug
> Reporter: Trevor Grant
> Assignee: Trevor Grant
> Fix For: 0.13.1
>
>
> In the At operation of Flink and spark there is a line that looks like:
> case (row, blockRow) => colV(row) = blockA(blockRow, blockCol)
> that ought to be
> case (row, blockRow) => colV(row) += blockA(blockRow, blockCol)
> Since it isnt'- the 'aggregate transpose' does not operate as expected.
> This needs to be updated in the Spark and Flink bindings (same one char fix).
> Test coverage should be updated to catch this.
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