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Posted to dev@mahout.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/05/21 14:13:13 UTC

[jira] [Commented] (MAHOUT-1799) Read null row vectors from file in TextDelimeterReaderWriter driver

    [ https://issues.apache.org/jira/browse/MAHOUT-1799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15295045#comment-15295045 ] 

ASF GitHub Bot commented on MAHOUT-1799:
----------------------------------------

Github user statguy commented on the pull request:

    https://github.com/apache/mahout/pull/182#issuecomment-220779951
  
    I have now provided the unit test.


> Read null row vectors from file in TextDelimeterReaderWriter driver
> -------------------------------------------------------------------
>
>                 Key: MAHOUT-1799
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1799
>             Project: Mahout
>          Issue Type: Improvement
>          Components: spark
>            Reporter: Jussi Jousimo
>            Assignee: Pat Ferrel
>            Priority: Minor
>             Fix For: 1.0.0
>
>
> Since some row vectors in a sparse matrix can be null, Mahout writes them out to a file with the row label only. However, Mahout cannot read these files, but throws an exception when it encounters a label-only row.



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