GitHub user facaiy opened a pull request:
https://github.com/apache/spark/pull/18554
[SPARK-21306][ML] OneVsRest should cache weightCol if necessary
## What changes were proposed in this pull request?
cache weightCol if classifier inherits HasWeightCol trait.
## How was this patch tested?
+ [x] add an unit test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/facaiy/spark BUG/oneVsRest_missing_weightCol
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18554.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 #18554
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commit f1785959e04e462877fd74e6c767e47e0fb207d6
Author: Yan Facai (é¢åæ) <[email protected]>
Date: 2017-07-06T09:38:01Z
BUG: cache weightCol if necessary
commit a3e6e967a23f06dbd50aee08c34b07055c5646ee
Author: Yan Facai (é¢åæ) <[email protected]>
Date: 2017-07-06T09:55:12Z
TST: add unit test
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