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https://issues.apache.org/jira/browse/SPARK-12684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15118311#comment-15118311
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holdenk commented on SPARK-12684:
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[~chris.roberts] would the toString with maxLineWidth work for your use case?
> Matrix.toString should take a format for how each cell should be printed
> ------------------------------------------------------------------------
>
> Key: SPARK-12684
> URL: https://issues.apache.org/jira/browse/SPARK-12684
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Chris Roberts
> Priority: Minor
>
> Currently there is no way to control how long the printout of a cell value is
> in Matrix.toString. In the case where I am printing the results of
> Statistics.corr(RDD[Vector]) I get a bunch of doubles with ~19 characters,
> when I only realistically have at most 5 significant digits. I would love to
> be able to pass in a format to limit the printing out of extraneous digits.
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