polars arg-sort

For dataframe.

warning This command requires a plugin The polars arg-sort 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.

Command Type

plugin

Signature

> polars arg-sort {flags}

Flags

• --reverse, -r: Reverse order.
• --nulls-last, -n: Nulls ordered last.
• --limit, -l {int}: Limit a sort output, this is for optimization purposes and might be ignored.
• --maintain-order, -m: Maintain order on sorted items.

Input/output types:

Examples

Returns indexes for a sorted series

> [1 2 2 3 3] | polars into-df | polars arg-sort
╭───┬──────────╮
│ # │ arg_sort │
├───┼──────────┤
│ 0 │        0 │
│ 1 │        1 │
│ 2 │        2 │
│ 3 │        3 │
│ 4 │        4 │
╰───┴──────────╯

Returns indexes for a sorted series

> [1 2 2 3 3] | polars into-df | polars arg-sort --reverse
╭───┬──────────╮
│ # │ arg_sort │
├───┼──────────┤
│ 0 │        3 │
│ 1 │        4 │
│ 2 │        1 │
│ 3 │        2 │
│ 4 │        0 │
╰───┴──────────╯

Returns indexes for a sorted series and applying a limit

> [1 2 2 3 3] | polars into-df | polars arg-sort --limit 2
╭───┬──────────╮
│ # │ arg_sort │
├───┼──────────┤
│ 0 │        0 │
│ 1 │        1 │
╰───┴──────────╯

Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.