apache/spark — pull request #3836 by ljzzju (2014-12-30 04:44:40+00:00)
Title: [MLlib]delete the "train" function

To make the functions with the same in "object" effective, specially when using java reflection.
As the "train" function defined in "class DecisionTree" will hide the functions with the same name in "object DecisionTree".

JIRA[SPARK-4998]