GitHub user zhengruifeng opened a pull request:
https://github.com/apache/spark/pull/11303
[SPARK-13435] [MLlib] Add Weighted Cohen's kappa to MulticlassMetrics
JIRA: https://issues.apache.org/jira/browse/SPARK-13435
## What changes were proposed in this pull request?
Add the missing Weighted Cohen's kappa to MulticlassMetrics.
## How was the this patch tested?
unit tests and manual tests were done.
The calculation correctness was tested on several small data, and compared
to two python's package: sklearn and ml_metrics.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zhengruifeng/spark kappa
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11303.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 #11303
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commit fe9a88a5137c0476e9c07d7d7819a1a6df2587fa
Author: Zheng RuiFeng <[email protected]>
Date: 2016-02-22T09:00:33Z
add kappa
commit 19a307ee367c4d574599370d6fd55f2a31c76bfe
Author: Zheng RuiFeng <[email protected]>
Date: 2016-02-22T09:12:30Z
update kappa
commit 0b19e0bdb96f3002eb0d0f8ce8800470f2f9f382
Author: Zheng RuiFeng <[email protected]>
Date: 2016-02-22T09:27:22Z
update kappa
commit 5bf863b07d32ccb86a4a6abd7be22b472a0ada53
Author: Zheng RuiFeng <[email protected]>
Date: 2016-02-22T10:57:44Z
update kappa
commit 52f3b9bc14ac5904e638b22a45df722745d2afc8
Author: Zheng RuiFeng <[email protected]>
Date: 2016-02-22T11:24:30Z
update kappa
commit 6c4f0341aaff8e32112b79a98007f7318916963b
Author: Zheng RuiFeng <[email protected]>
Date: 2016-02-22T13:25:57Z
update kappa
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