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https://issues.apache.org/jira/browse/SPARK-19985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Pentreath resolved SPARK-19985.
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Resolution: Fixed
Fix Version/s: 2.2.0
Issue resolved by pull request 17326
[https://github.com/apache/spark/pull/17326]
> Some ML Models error when copy or do not set parent
> ---------------------------------------------------
>
> Key: SPARK-19985
> URL: https://issues.apache.org/jira/browse/SPARK-19985
> Project: Spark
> Issue Type: Bug
> Components: ML
> Affects Versions: 2.2.0
> Reporter: Bryan Cutler
> Fix For: 2.2.0
>
>
> Some ML Models fail when copied due to not having a default constructor and
> implementing {{copy}} with {{defaultCopy}}. Other cases do not properly set
> the parent when the model is copied. These models were missing the normal
> check that tests for these in the test suites.
> Models with issues are:
> * RFormlaModel
> * MultilayerPerceptronClassificationModel
> * BucketedRandomProjectionLSHModel
> * MinHashLSH
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