dfr dtypes for dataframe

Show dataframe data types.

Signature

> dfr dtypes

Input/output types:

input	output
any	any

Examples

Dataframe dtypes

> [[a b]; [1 2] [3 4]] | dfr into-df | dfr dtypes
╭───┬────────┬───────╮
│ # │ column │ dtype │
├───┼────────┼───────┤
│ 0 │ a      │ i64   │
│ 1 │ b      │ i64   │
╰───┴────────┴───────╯

Tips: Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe flag