GitHub user sethah opened a pull request:
https://github.com/apache/spark/pull/12097
[SPARK-14308][ML][MLLIB] Remove unused mllib tree classes and move private
classes to ML
## What changes were proposed in this pull request?
Decision tree helper classes will be migrated to ML. This patch moves those
internal classes that are not part of the public API and removes ones that are
no longer used, after
[SPARK-12183](https://github.com/apache/spark/pull/11855). No functional
changes are made.
Details:
* Bin.scala is removed as the ML implementation does not require bins
* mllib NodeIdCache is removed. It was only used by the mllib
implementation previously, which no longer exists
* mllib TreePoint is removed. It was only used by the mllib implementation
previously, which no longer exists
* BaggedPoint, DTStatsAggregator, DecisionTreeMetadata, BaggedPointSuite
and TimeTracker are all moved to ML.
## How was this patch tested?
No functional changes are made. Existing unit tests ensure behavior is
unchanged.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sethah/spark cleanup_mllib_tree
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12097.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 #12097
----
commit 186262fd2eb59ab0ff32bfc986de3b952b9bc917
Author: sethah <[email protected]>
Date: 2016-03-31T18:41:50Z
cleanup mllib impl
commit ec95de17627daf98d5ba53821b7e1bf4f1e67689
Author: sethah <[email protected]>
Date: 2016-03-31T18:54:18Z
moving bagged point test suite
commit 3fb50f27ea41b18461fd4e507c1af375622c7236
Author: sethah <[email protected]>
Date: 2016-03-31T20:23:37Z
moving metadata and stats aggregator
commit 7ec154326d8f82f350464f571b1b5dd3798b2b67
Author: sethah <[email protected]>
Date: 2016-03-31T21:07:44Z
style fixes
----
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