polars set for dataframe

Sets value where given mask is true.

This command requires a plugin

The polars set 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 set {flags} (value)

Flags

  • --mask, -m {any}: mask indicating insertions

Parameters

  • value: value to be inserted in series

Input/output types:

inputoutput
polars_dataframepolars_dataframe
polars_lazyframepolars_lazyframe

Examples

Shifts the values by a given period

> let s = ([1 2 2 3 3] | polars into-df | polars shift 2);
    let mask = ($s | polars is-null);
    $s | polars set 0 --mask $mask
╭───┬───╮
│ # │ 0 │
├───┼───┤
│ 0 │ 0 │
│ 1 │ 0 │
│ 2 │ 1 │
│ 3 │ 2 │
│ 4 │ 2 │
╰───┴───╯