Xiangrui Meng created SPARK-7559:
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Summary: 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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