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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2015/09/22 19:56:04 UTC
[jira] [Updated] (SPARK-10750) ML Param validate should print
better error information
[ https://issues.apache.org/jira/browse/SPARK-10750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joseph K. Bradley updated SPARK-10750:
--------------------------------------
Shepherd: Joseph K. Bradley
Assignee: Yanbo Liang
Target Version/s: 1.6.0
> ML Param validate should print better error information
> -------------------------------------------------------
>
> Key: SPARK-10750
> URL: https://issues.apache.org/jira/browse/SPARK-10750
> Project: Spark
> Issue Type: Bug
> Components: ML
> Reporter: Yanbo Liang
> Assignee: Yanbo Liang
> Priority: Minor
>
> Currently when you set illegal value for params of array type (such as IntArrayParam, DoubleArrayParam, StringArrayParam), it will throw IllegalArgumentException but with incomprehensible error information.
> For example:
> val vectorSlicer = new VectorSlicer().setInputCol("features").setOutputCol("result")
> vectorSlicer.setIndices(Array.empty).setNames(Array("f1", "f4", "f1"))
> It will throw IllegalArgumentException as:
> vectorSlicer_b3b4d1a10f43 parameter names given invalid value [Ljava.lang.String;@798256c5.
> java.lang.IllegalArgumentException: vectorSlicer_b3b4d1a10f43 parameter names given invalid value [Ljava.lang.String;@798256c5.
> Users can not understand which params were set incorrectly.
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