dfr columns for dataframe

Show dataframe columns.

WARNING

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

Signature

> dfr columns {flags}

Input/output types:

inputoutput
anyany

Examples

Dataframe columns

> [[a b]; [1 2] [3 4]] | dfr into-df | dfr columns
╭───┬───╮
 0  a 
 1  b 
╰───┴───╯