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https://issues.apache.org/jira/browse/SPARK-23730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-23730.
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Resolution: Incomplete
> Save and expose "in bag" tracking for random forest model
> ---------------------------------------------------------
>
> Key: SPARK-23730
> URL: https://issues.apache.org/jira/browse/SPARK-23730
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 2.3.0
> Reporter: Julian King
> Priority: Minor
> Labels: bulk-closed
>
> In a random forest model, it is often useful to be able to keep track of
> which samples ended up in each of the bootstrap replications (and how many
> times this happened). For instance, in the R randomForest package this is
> accomplished through the option keep.inbag=TRUE
> Similar functionality in Spark ML's random forest would be helpful
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