GitHub user WeichenXu123 opened a pull request:
https://github.com/apache/spark/pull/14156
[SPARK-16499][ML][MLLib] improve ApplyInPlace function in ANN code
## What changes were proposed in this pull request?
I re-code the following fuction using breeze's matrix operating function.
def apply(x: BDM[Double], y: BDM[Double], func: Double => Double): Unit
## How was this patch tested?
Existing test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/WeichenXu123/spark
improve_ann_apply_in_place_fun
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14156.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 #14156
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commit c7b2059c5799404c3a3e99615e2ad7dc32989fda
Author: WeichenXu <[email protected]>
Date: 2016-07-11T11:57:19Z
improve_ann_apply_in_place_fun
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