GitHub user yanboliang opened a pull request:
https://github.com/apache/spark/pull/8552
[SPARK-10394] [ML] Make GBTParams use shared stepSize
```GBTParams``` has ```stepSize``` as learning rate currently.
ML has shared param class ```HasStepSize```, ```GBTParams``` can extend
from it rather than duplicated implementation.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yanboliang/spark spark-10394
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8552.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 #8552
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commit d32ec5a590e76078e597cd55321c0dfa0c209ce3
Author: Yanbo Liang <[email protected]>
Date: 2015-09-01T10:18:33Z
Make GBTParams use shared stepSize
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