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https://issues.apache.org/jira/browse/SPARK-7559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539465#comment-14539465
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Apache Spark commented on SPARK-7559:
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User 'mengxr' has created a pull request for this issue:
https://github.com/apache/spark/pull/6075
> Bucketizer should include the right most boundary in the last bucket.
> ---------------------------------------------------------------------
>
> Key: SPARK-7559
> URL: https://issues.apache.org/jira/browse/SPARK-7559
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 1.4.0
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
> Priority: Minor
>
> Now we use special treatment for +inf. This could be simplified by including
> the largest split value in the last bucket. E.g., (x1, x2, x3) defines
> buckets [x1, x2) and [x2, x3]. This shouldn't affect user code much, and
> there are applications that need to include the right-most value. For
> example, we can bucketize ratings from 0 to 10 to bad, neutral, and good with
> splits 0, 4, 6, 10.
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