GitHub user yanboliang opened a pull request:
https://github.com/apache/spark/pull/9183
[SPARK-11215] [ML] Add multiple columns support to StringIndexer
Add multiple columns support to ```StringIndexer```, then users can
transform multiple input columns to multiple output columns simultaneously.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yanboliang/spark spark-11215
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9183.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 #9183
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commit 10ec73470305b681aa7e357f8edf520ffa3f6c51
Author: Yanbo Liang <[email protected]>
Date: 2015-10-20T15:26:13Z
Add multiple columns support to StringIndexer
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