Nushell
Get Nu!
Getting Started
  • The Nushell Book
  • Command Reference
  • Cookbook
  • Language Reference Guide
  • Contributing Guide
Blog
  • English
  • 中文
  • Deutsch
  • Français
  • Español
  • 日本語
  • Português do Brasil
  • Русский язык
GitHub
Get Nu!
Getting Started
  • The Nushell Book
  • Command Reference
  • Cookbook
  • Language Reference Guide
  • Contributing Guide
Blog
  • English
  • 中文
  • Deutsch
  • Français
  • Español
  • 日本語
  • Português do Brasil
  • Русский язык
GitHub
  • Categories

    • Bits
    • Bytes
    • Chart
    • Conversions
    • Core
    • Database
    • Dataframe
    • Dataframe Or Lazyframe
    • Date
    • Debug
    • Default
    • Env
    • Experimental
    • Expression
    • Filesystem
    • Filters
    • Formats
    • Generators
    • Hash
    • History
    • Lazyframe
    • Math
    • Misc
    • Network
    • Path
    • Platform
    • Plugin
    • Prompt
    • Random
    • Removed
    • Shells
    • Strings
    • System
    • Viewers

polars sort-by for lazyframe

Sorts a lazy dataframe based on expression(s).

This command requires a plugin

The polars sort-by command resides in the polars plugin. To use this command, you must install and register nu_plugin_polars. See the Plugins chapter in the book for more information.

Signature

> polars sort-by {flags} ...rest

Flags

  • --reverse, -r {list<bool>}: Reverse sorting. Default is false
  • --nulls-last, -n: nulls are shown last in the dataframe
  • --maintain-order, -m: Maintains order during sort

Parameters

  • ...rest: sort expression for the dataframe

Input/output types:

inputoutput
anyany

Examples

Sort dataframe by one column

> [[a b]; [6 2] [1 4] [4 1]] | polars into-df | polars sort-by a
╭───┬───┬───╮
│ # │ a │ b │
├───┼───┼───┤
│ 0 │ 1 │ 4 │
│ 1 │ 4 │ 1 │
│ 2 │ 6 │ 2 │
╰───┴───┴───╯

Sort column using two columns

> [[a b]; [6 2] [1 1] [1 4] [2 4]] | polars into-df | polars sort-by [a b] -r [false true]
╭───┬───┬───╮
│ # │ a │ b │
├───┼───┼───┤
│ 0 │ 1 │ 4 │
│ 1 │ 1 │ 1 │
│ 2 │ 2 │ 4 │
│ 3 │ 6 │ 2 │
╰───┴───┴───╯