dfr rename for dataframe or lazyframe

Rename a dataframe column.

Signature

> dfr rename (columns) (new names)

Parameters

• columns: Column(s) to be renamed. A string or list of strings
• new names: New names for the selected column(s). A string or list of strings

Input/output types:

input	output
any	any

Examples

Renames a series

> [5 6 7 8] | dfr into-df | dfr rename '0' new_name
╭───┬──────────╮
│ # │ new_name │
├───┼──────────┤
│ 0 │        5 │
│ 1 │        6 │
│ 2 │        7 │
│ 3 │        8 │
╰───┴──────────╯

Renames a dataframe column

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

Renames two dataframe columns

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

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