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https://issues.apache.org/jira/browse/SPARK-17207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15436878#comment-15436878
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Sean Owen commented on SPARK-17207:
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Sounds like the test needs to be fixed. Yes, you would fix it in this PR,
assuming it's clearly just a latent bug in the test uncovered by this fix. I'd
look into it more but not sure which test you refer to here.
(Also I see that the error message is a little misleading, because the cause of
the failure isn't that the elements mismatch but the sizes. Maybe we can throw
a more specific error here.)
> Comparing Vector in relative tolerance or absolute tolerance in UnitTests
> error
> --------------------------------------------------------------------------------
>
> Key: SPARK-17207
> URL: https://issues.apache.org/jira/browse/SPARK-17207
> Project: Spark
> Issue Type: Bug
> Components: ML, MLlib
> Reporter: Peng Meng
>
> The result of compare two vectors using UnitTests
> (org.apache.spark.mllib.util.TestingUtils) is not right sometime.
> For example:
> val a = Vectors.dense(Arrary(1.0, 2.0))
> val b = Vectors.zeros(0)
> a ~== b absTol 1e-1 // the result is true.
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