cloverrose 288f309434 [jvm-packages] call setGroup for ranking task (#2066)
* [jvm-packages] call setGroup for ranking task

* passing groupData through xgBoostConfMap

* fix original comment position

* make groupData param

* remove groupData variable, use xgBoostConfMap directly

* set default groupData value

* add use groupData tests

* reduce rank-demo size

* use TaskContext.getPartitionId() instead of mapPartitionsWithIndex

* add DF use groupData test

* remove unused varable
2017-03-06 15:45:06 -08:00
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