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From "Joseph K. Bradley (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (SPARK-7559) Bucketizer should include the right most boundary in the last bucket.
Date Wed, 13 May 2015 00:38:59 GMT

     [ https://issues.apache.org/jira/browse/SPARK-7559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joseph K. Bradley reopened SPARK-7559:
--------------------------------------

> 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
>             Fix For: 1.4.0
>
>
> 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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