GitHub user mgaido91 opened a pull request:
https://github.com/apache/spark/pull/20629
[SPARK-23451][ML] Deprecate KMeans.computeCost
## What changes were proposed in this pull request?
Deprecate `KMeans.computeCost` which was introduced as a temp fix and now
it is not needed anymore, since we introduced `ClusteringEvaluator`.
## How was this patch tested?
manual test (deprecation warning displayed)
Scala
```
...
scala> model.computeCost(dataset)
warning: there was one deprecation warning; re-run with -deprecation for
details
res1: Double = 0.0
```
Python
```
>>> import warnings
>>> warnings.simplefilter('always', DeprecationWarning)
...
>>> model.computeCost(df)
/Users/mgaido/apache/spark/python/pyspark/ml/clustering.py:330:
DeprecationWarning: Deprecated in 2.4.0. It will be removed in 3.0.0. Use
ClusteringEvaluator instead.
" instead.", DeprecationWarning)
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mgaido91/spark SPARK-23451
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20629.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 #20629
----
commit 2f79bb2d5c7e29e85a4a7abe63254d392a49fe53
Author: Marco Gaido <marcogaido91@...>
Date: 2018-02-16T16:03:09Z
[SPARK-23451][ML] Deprecate KMeans.computeCost
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