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https://issues.apache.org/jira/browse/SPARK-8510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Aberline updated SPARK-8510:
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Summary: NumPy arrays and matrices as values in sequence files (was:
Support NumPy arrays and matrices as values in sequence files)
> NumPy arrays and matrices as values in sequence files
> -----------------------------------------------------
>
> Key: SPARK-8510
> URL: https://issues.apache.org/jira/browse/SPARK-8510
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Reporter: Peter Aberline
> Priority: Minor
>
> I have extended the provided example code DoubleArrayWritable example to
> store NumPy double type arrays and matrices as arrays of doubles and nested
> arrays of doubles.
> Pandas DataFrames can be easily converted to NumPy matrices, so I've also
> added the ability to store the schema-less data from DataFrames and Series
> that contain double data.
> Other than my own use there seems to be demand for this functionality:
> http://mail-archives.us.apache.org/mod_mbox/spark-user/201506.mbox/%3CCAJQK-mg1PUCc_hkV=q3n-01ioq_pkwe1g-c39ximco3khqn...@mail.gmail.com%3E
> I'll be issuing a PR for this shortly.
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