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| author | Timothy Hunter <timhunter@databricks.com> | 2016-02-22 23:31:00 -0800 |
|---|---|---|
| committer | Xiangrui Meng <meng@databricks.com> | 2016-02-22 23:31:00 -0800 |
| commit | 4fd1993692d45a0da0289b8c7669cc1dc3fe0f2b (patch) | |
| tree | 9519309f9170f231a42fa8f8d3696bf958a9be4c /mllib/src/test/scala | |
| parent | 01e10c9fef51c69ecf3060929c62d113cfc672b9 (diff) | |
| download | spark-4fd1993692d45a0da0289b8c7669cc1dc3fe0f2b.tar.gz spark-4fd1993692d45a0da0289b8c7669cc1dc3fe0f2b.tar.bz2 spark-4fd1993692d45a0da0289b8c7669cc1dc3fe0f2b.zip | |
[SPARK-6761][SQL] Approximate quantile for DataFrame
JIRA: https://issues.apache.org/jira/browse/SPARK-6761
Compute approximate quantile based on the paper Greenwald, Michael and Khanna, Sanjeev, "Space-efficient Online Computation of Quantile Summaries," SIGMOD '01.
Author: Timothy Hunter <timhunter@databricks.com>
Author: Liang-Chi Hsieh <viirya@gmail.com>
Closes #6042 from viirya/approximate_quantile.
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