Jiaming Yuan a4b929385e
Note for DaskDMatrix. (#5144)
* Brief introduction to `DaskDMatrix`.

* Add xgboost.dask.train to API doc
2019-12-23 18:55:32 +08:00
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2018-07-19 14:22:16 -07:00
2019-12-23 18:55:32 +08:00