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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2014/07/29 21:50:41 UTC

[jira] [Resolved] (SPARK-2082) Stratified sampling implementation in PairRDDFunctions

     [ https://issues.apache.org/jira/browse/SPARK-2082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng resolved SPARK-2082.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 1.1.0

Issue resolved by pull request 1025
[https://github.com/apache/spark/pull/1025]

> Stratified sampling implementation in PairRDDFunctions
> ------------------------------------------------------
>
>                 Key: SPARK-2082
>                 URL: https://issues.apache.org/jira/browse/SPARK-2082
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>            Reporter: Doris Xin
>            Assignee: Doris Xin
>             Fix For: 1.1.0
>
>
> Implementation of stratified sampling that guarantees exact sample size = sum(math.ceil(S_i*sampingRate)) where S_i is the size of each stratum. 



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