dfr rename for dataframe or lazyframe

Rename a dataframe column.

WARNING

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

Signature

> dfr rename {flags} (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:

inputoutput
anyany

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 
╰───┴───────┴───────╯