Jiaming Yuan 58a6723eb1 Initial support for multioutput regression. (#7514) ...

* Add num target model parameter, which is configured from input labels.
* Change elementwise metric and indexing for weights.
* Add demo.
* Add tests.

2021-12-18 09:28:38 +08:00

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xgboost

Initial support for multioutput regression. (#7514)

2021-12-18 09:28:38 +08:00