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https://issues.apache.org/jira/browse/SPARK-12663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15084472#comment-15084472
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Apache Spark commented on SPARK-12663:
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User 'robert-dodier' has created a pull request for this issue:
https://github.com/apache/spark/pull/10611
> More informative error message in MLUtils.loadLibSVMFile
> --------------------------------------------------------
>
> Key: SPARK-12663
> URL: https://issues.apache.org/jira/browse/SPARK-12663
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Robert Dodier
> Priority: Minor
>
> MLUtils.loadLibSVMFile requires that indices be strictly increasing and it
> prints an error message if that condition is not met. The message says only
> "indices should be one-based and in ascending order". It would be helpful to
> print more information, in order to help the user determine what's the
> problem with their input file.
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