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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2014/11/25 06:06:12 UTC

[jira] [Created] (SPARK-4588) Add API for feature attributes

Xiangrui Meng created SPARK-4588:
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             Summary: Add API for feature attributes
                 Key: SPARK-4588
                 URL: https://issues.apache.org/jira/browse/SPARK-4588
             Project: Spark
          Issue Type: Sub-task
          Components: ML, MLlib
            Reporter: Xiangrui Meng


Feature attributes, e.g., continuous/categorical, feature names, feature dimension, number of categories, number of nonzeros (support) could be useful for ML algorithms.

In SPARK-3569, we added metadata to schema, which can be used to store feature attributes along with the dataset. We need to provide a wrapper over the Metadata class for ML usage.



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