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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2015/02/18 20:25:12 UTC

[jira] [Created] (SPARK-5891) Add Binarizer

Xiangrui Meng created SPARK-5891:
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             Summary: Add Binarizer
                 Key: SPARK-5891
                 URL: https://issues.apache.org/jira/browse/SPARK-5891
             Project: Spark
          Issue Type: Sub-task
          Components: ML
            Reporter: Xiangrui Meng


`Binarizer` takes a column of continuous features and output a column with binary features, where nonzeros (or values below a threshold) become 1 in the output.

{code}
val binarizer = new Binarizer()
  .setInputCol("numVisits")
  .setOutputCol("visited")
{code}

The output column should be marked as binary. We need to discuss whether we should process multiple columns or a vector column.



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