GitHub user zhengruifeng opened a pull request:
https://github.com/apache/spark/pull/15414
[SPARK-17848][ML] Move LabelCol datatype cast into Predictor.fit
## What changes were proposed in this pull request?
1, move cast to `Predictor`
2, and then, remove unnecessary cast
## How was this patch tested?
existing tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zhengruifeng/spark move_cast
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15414.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 #15414
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commit 5cb06fcd7987d1889b42a47f38bff89a47161123
Author: Zheng RuiFeng <ruife...@foxmail.com>
Date: 2016-10-10T05:44:47Z
create pr
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