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https://issues.apache.org/jira/browse/SPARK-6421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-6421.
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Resolution: Fixed
Fix Version/s: 1.3.1
Issue resolved by pull request 5101
[https://github.com/apache/spark/pull/5101]
> _regression_train_wrapper does not test initialWeights correctly
> ----------------------------------------------------------------
>
> Key: SPARK-6421
> URL: https://issues.apache.org/jira/browse/SPARK-6421
> Project: Spark
> Issue Type: Bug
> Components: MLlib, PySpark
> Affects Versions: 1.3.0
> Reporter: Joseph K. Bradley
> Assignee: Kai Sasaki
> Fix For: 1.3.1
>
>
> There is a bug in this line:
> [https://github.com/apache/spark/blob/f17d43b033d928dbc46aef8e367aa08902e698ad/python/pyspark/mllib/regression.py#L138]
> You can reproduce this bug as follows:
> {code}
> >>> from numpy import array
> >>> a = array([1,2,3])
> >>> b = a or [1.0] * 3
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> ValueError: The truth value of an array with more than one element is
> ambiguous. Use a.any() or a.all()
> {code}
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