Yanbo Liang d9327192ee SPARK-4111 [MLlib] add regression metrics ... Add RegressionMetrics.scala as regression metrics used for evaluation and corresponding test case RegressionMetricsSuite.scala. Author: Yanbo Liang <yanbohappy@gmail.com> Author: liangyanbo <liangyanbo@meituan.com> Closes #2978 from yanbohappy/regression_metrics and squashes the following commits: 730d0a9 [Yanbo Liang] more clearly annotation 3d0bec1 [Yanbo Liang] rename and keep code style a8ad3e3 [Yanbo Liang] simplify code for keeping style d454909 [Yanbo Liang] rename parameter and function names, delete unused columns, add reference 2e56282 [liangyanbo] rename r2_score() and remove unused column 43bb12b [liangyanbo] add regression metrics		2014-10-30 12:00:56 -07:00
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src	SPARK-4111 [MLlib] add regression metrics	2014-10-30 12:00:56 -07:00
pom.xml	SPARK-4022 [CORE] [MLLIB] Replace colt dependency (LGPL) with commons-math	2014-10-27 10:53:15 -07:00