roll left for filters

Roll record or table columns left.

WARNING

Command roll left was not included in the official binaries by default, you have to build it with --features=extra flag

Signature

> roll left {flags}

Flags

  • --by, -b {int}: Number of columns to roll
  • --cells-only, -c: rotates columns leaving headers fixed

Input/output types:

inputoutput
recordrecord
tabletable

Examples

Rolls columns of a record to the left

> {a:1 b:2 c:3} | roll left
╭───┬───╮
 b  2 
 c  3 
 a  1 
╰───┴───╯

Rolls columns of a table to the left

> [[a b c]; [1 2 3] [4 5 6]] | roll left
╭───┬───┬───┬───╮
 # │ b │ c │ a │
├───┼───┼───┼───┤
 0  2  3  1 
 1  5  6  4 
╰───┴───┴───┴───╯

Rolls columns to the left without changing column names

> [[a b c]; [1 2 3] [4 5 6]] | roll left --cells-only
╭───┬───┬───┬───╮
 # │ a │ b │ c │
├───┼───┼───┼───┤
 0  2  3  1 
 1  5  6  4 
╰───┴───┴───┴───╯