GitHub user mengxr opened a pull request:
https://github.com/apache/spark/pull/11332
[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
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mengxr/spark SPARK-6761
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11332.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #11332
----
commit a77b7e678ae266210bfaf8ca9b88fc3d2dd54d0d
Author: Timothy Hunter <[email protected]>
Date: 2016-02-23T17:32:18Z
SPARK-6761 Additional cleanups to address comments, there is an error
somewhere
commit dbf87f1da765eed21880cda71a4b5ec62bee3e4d
Author: Timothy Hunter <[email protected]>
Date: 2016-02-23T17:50:13Z
fixed test
commit 9243278c00a37aea09cd08d4d1647a750baf9e07
Author: Timothy Hunter <[email protected]>
Date: 2016-02-23T17:56:50Z
typo
commit 35b06c686a06c6d7887a63915a575198492caad4
Author: Xiangrui Meng <[email protected]>
Date: 2016-02-23T21:35:12Z
update approxQuantile API and doc
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