Apache Spark commented on SPARK-3261:

User 'srowen' has created a pull request for this issue:

> KMeans clusterer can return duplicate cluster centers
> -----------------------------------------------------
>                 Key: SPARK-3261
>                 URL: https://issues.apache.org/jira/browse/SPARK-3261
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 1.0.2
>            Reporter: Derrick Burns
>            Priority: Minor
>              Labels: clustering
> This is a bad design choice.  I think that it is preferable to produce no 
> duplicate cluster centers. So instead of forcing the number of clusters to be 
> K, return at most K clusters.

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