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Posted to issues@spark.apache.org by "Doris Xin (JIRA)" <ji...@apache.org> on 2014/06/09 22:15:04 UTC

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

Doris Xin created SPARK-2082:
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             Summary: Stratified sampling implementation in PairRDDFunctions
                 Key: SPARK-2082
                 URL: https://issues.apache.org/jira/browse/SPARK-2082
             Project: Spark
          Issue Type: New Feature
            Reporter: Doris Xin


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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