Jiaming Yuan 0ed979b096
Support more input types for categorical data. (#7220)
* Support more input types for categorical data.

* Shorten the type name from "categorical" to "c".
* Tests for np/cp array and scipy csr/csc/coo.
* Specify the type for feature info.
2021-09-16 20:39:30 +08:00
..
2021-03-20 16:52:40 +08:00