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Posted to reviews@spark.apache.org by jkbradley <gi...@git.apache.org> on 2017/12/01 22:50:11 UTC

[GitHub] spark issue #19746: [SPARK-22346][ML] VectorSizeHint Transformer for using V...

Github user jkbradley commented on the issue:

    https://github.com/apache/spark/pull/19746
  
    @WeichenXu123  From what I've seen, it's more common for people to use VectorAssembler to assemble a bunch of Numeric columns, rather than a bunch of Vector columns.  I'd recommend we do things incrementally, adding single-column support before multi-column support (especially since we're still trying to achieve consensus about design for multi-column support, per my recent comment in the umbrella JIRA).


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