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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2014/08/07 22:55:11 UTC

[jira] [Created] (SPARK-2909) Indexing for vectors in MLlib

Joseph K. Bradley created SPARK-2909:
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             Summary: Indexing for vectors in MLlib
                 Key: SPARK-2909
                 URL: https://issues.apache.org/jira/browse/SPARK-2909
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
            Reporter: Joseph K. Bradley
            Priority: Minor


Vectors (DenseVector and SparseVector) do not currently support indexing, except by examining the internal representation.  Though indexing is a pricy operation, it would be useful for, e.g., iterating through a dataset (RDD[LabeledPoint]) and operating on a single feature.



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