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https://issues.apache.org/jira/browse/MAHOUT-1754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14611200#comment-14611200
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Hudson commented on MAHOUT-1754:
--------------------------------
FAILURE: Integrated in Mahout-Quality #3214 (See
[https://builds.apache.org/job/Mahout-Quality/3214/])
MAHOUT-1754: Distance and squared distance matrices routines (dlyubimov)
(dlyubimov: rev c0463c0e4508a1abe254a9f8cbc7dfa3c2a3798a)
* math-scala/src/main/scala/org/apache/mahout/math/scalabindings/package.scala
*
math-scala/src/main/scala/org/apache/mahout/math/scalabindings/RLikeVectorOps.scala
* math-scala/src/test/scala/org/apache/mahout/math/drm/DrmLikeOpsSuiteBase.scala
*
math-scala/src/main/scala/org/apache/mahout/math/scalabindings/RLikeMatrixOps.scala
* math-scala/src/test/scala/org/apache/mahout/math/scalabindings/MathSuite.scala
* math-scala/src/main/scala/org/apache/mahout/math/drm/package.scala
* math-scala/src/main/scala/org/apache/mahout/math/drm/RLikeDrmOps.scala
> Distance and squared distance matrix routines
> ---------------------------------------------
>
> Key: MAHOUT-1754
> URL: https://issues.apache.org/jira/browse/MAHOUT-1754
> Project: Mahout
> Issue Type: Blog - New Blog Request
> Reporter: Dmitriy Lyubimov
> Assignee: Dmitriy Lyubimov
> Fix For: 0.10.2
>
>
> R analogs: dist()
> this issue suggests to provide routine for distance and squared distance
> matrix computation.
> Since most of the use actually requires or can use square distance routine,
> we suggest to provide both squared and non-squared eucledian distance
> matrices.
> By convention, distributed versions are prepended by (d) letter:
> dist(x)
> sqDist(x)
> dsqDist
> The points are assumed to be row-wise.
> We also provide variation for pair-wise distance matrix of two different
> inputs x and y:
> sqDist(x,y)
> dsqDist(x,y).
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