GitHub user zhengruifeng opened a pull request:
https://github.com/apache/spark/pull/15372
[SPARK-17797] LabelCol support non-double datatypes
## What changes were proposed in this pull request?
1, modify `Classifier.getNumClasses` to support all numeric datatypes
2, modify `MLTestingUtils` to run estimator's `fit` without precomputed
`numClasses`
## How was this patch tested?
unit tests, manual tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zhengruifeng/spark labelCol_support_numeric
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15372.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 #15372
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commit fd86031710cb2538d8ab0c3900aacb702d49ba09
Author: Zheng RuiFeng <ruife...@foxmail.com>
Date: 2016-10-06T03:50:54Z
create pr
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