Jiaming Yuan 9da2287ab8
[breaking] Save booster feature info in JSON, remove feature name generation. (#6605)
* Save feature info in booster in JSON model.
* [breaking] Remove automatic feature name generation in `DMatrix`.

This PR is to enable reliable feature validation in Python package.
2021-02-25 18:54:16 +08:00
..
2020-07-03 07:49:53 +08:00
2021-01-08 18:35:09 +08:00