GitHub user iyounus opened a pull request:
https://github.com/apache/spark/pull/10702
[Spark-12732][ML] bug fix in linear regression train
Fixed the bug in linear regression train for the case when the target
variable is constant. The two cases for `fitIntercept=true` or
`fitIntercept=false` should be treated differently.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/iyounus/spark
SPARK-12732_bug_fix_in_linear_regression_train
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/10702.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 #10702
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commit de60c44daa88fec1a29c58589a5538197e3e1be2
Author: Imran Younus <iyou...@us.ibm.com>
Date: 2016-01-10T01:42:28Z
bug fix in linear regrssion for contstant label, but the test still fails.
commit 944be7143880bc307d8538ae1e354ea2c184787b
Author: Imran Younus <iyou...@us.ibm.com>
Date: 2016-01-11T19:31:54Z
fixed the test case for constant label
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