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| author | Timothy Hunter <timhunter@databricks.com> | 2016-02-23 15:31:17 -0800 |
|---|---|---|
| committer | Xiangrui Meng <meng@databricks.com> | 2016-02-23 15:31:17 -0800 |
| commit | 15e30155631d52e35ab8522584027ab350e5acb3 (patch) | |
| tree | f7678f8ba2c87de7900806fdb8531b474b3f0a2d /R | |
| parent | 9cdd867da978629ea2f61f94e3c346fa0bfecf0e (diff) | |
| download | spark-15e30155631d52e35ab8522584027ab350e5acb3.tar.gz spark-15e30155631d52e35ab8522584027ab350e5acb3.tar.bz2 spark-15e30155631d52e35ab8522584027ab350e5acb3.zip | |
[SPARK-6761][SQL][ML] Fixes to API and documentation of approximate quantiles
## What changes were proposed in this pull request?
This continues thunterdb 's work on `approxQuantile` API. It changes the signature of `approxQuantile` from `(col: String, quantile: Double, epsilon: Double): Double` to `(col: String, probabilities: Array[Double], relativeError: Double): Array[Double]` and update API doc. It also improves the error message in tests and simplifies the merge algorithm for summaries.
## How was the this patch tested?
Use the same unit tests as before.
Closes #11325
Author: Timothy Hunter <timhunter@databricks.com>
Author: Xiangrui Meng <meng@databricks.com>
Closes #11332 from mengxr/SPARK-6761.
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