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https://issues.apache.org/jira/browse/SPARK-14207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15215351#comment-15215351
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yuhao yang commented on SPARK-14207:
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I'm thinking the first version can implement the basic function as in the
description. Later this can be expanded to support more complicated split.
working on it.
> Transformer for splitting a Vector/Array column into individual columns
> -----------------------------------------------------------------------
>
> Key: SPARK-14207
> URL: https://issues.apache.org/jira/browse/SPARK-14207
> Project: Spark
> Issue Type: New Feature
> Components: ML
> Reporter: Joseph K. Bradley
> Priority: Minor
>
> Use case: Given feature vector column of type {{Vector}} or
> {{Array[Double]}}, split it into one column per feature. Each column should
> be labeled with the original feature name if that is available from the
> metadata.
> What shall we call this Transformer? Maybe VectorSplitter or VectorToColumns?
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