[jira] [Assigned] (SPARK-14758) Add checking for StepSize and Tol

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-14758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-14758:
------------------------------------

    Assignee: Apache Spark

> Add checking for StepSize and Tol
> ---------------------------------
>
>                 Key: SPARK-14758
>                 URL: https://issues.apache.org/jira/browse/SPARK-14758
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>            Reporter: zhengruifeng
>            Assignee: Apache Spark
>
> The following code run successfully and return a model. 
> {code}
> val data = ...
> val gbt = new GBTRegressor().setStepSize(-1)
> val linear = new LinearRegression().setTol(-1)
> val model = linear.fit(data)
> {code}
> The {{setStepSize}} and {{setTol}} should throw some exception.



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