Feynman Liang 536533cad8 [SPARK-9005] [MLLIB] Fix RegressionMetrics computation of explainedVariance ... Fixes implementation of `explainedVariance` and `r2` to be consistent with their definitions as described in [SPARK-9005](https://issues.apache.org/jira/browse/SPARK-9005). Author: Feynman Liang <fliang@databricks.com> Closes #7361 from feynmanliang/SPARK-9005-RegressionMetrics-bugs and squashes the following commits: f1112fc [Feynman Liang] Add explainedVariance formula 1a3d098 [Feynman Liang] SROwen code review comments 08a0e1b [Feynman Liang] Fix pyspark tests db8605a [Feynman Liang] Style fix bde9761 [Feynman Liang] Fix RegressionMetrics tests, relax assumption predictor is unbiased c235de0 [Feynman Liang] Fix RegressionMetrics tests 4c4e56f [Feynman Liang] Fix RegressionMetrics computation of explainedVariance and r2		2015-07-15 13:32:25 -07:00
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docs	[SPARK-7619] [PYTHON] fix docstring signature	2015-05-14 18:16:22 -07:00
lib	[SPARK-2305] [PySpark] Update Py4J to version 0.8.2.1	2014-07-29 19:02:06 -07:00
pyspark	[SPARK-9005] [MLLIB] Fix RegressionMetrics computation of explainedVariance	2015-07-15 13:32:25 -07:00
test_support	[SPARK-8060] Improve DataFrame Python test coverage and documentation.	2015-06-03 00:23:34 -07:00
.gitignore	[SPARK-3946] gitignore in /python includes wrong directory	2014-10-14 14:09:39 -07:00
run-tests	[SPARK-8583] [SPARK-5482] [BUILD] Refactor python/run-tests to integrate with dev/run-tests module system	2015-06-27 20:24:34 -07:00
run-tests.py	[SPARK-8450] [SQL] [PYSARK] cleanup type converter for Python DataFrame	2015-07-08 18:22:53 -07:00