polars slice

Creates new dataframe from a slice of rows.

warning This command requires a plugin The polars slice 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 slice {flags} (offset) (size)

Parameters

offset: Start of slice.
size: Size of slice.

Input/output types:

input	output
polars_dataframe	polars_dataframe
polars_lazyframe	polars_lazyframe

Examples

Create new dataframe from a slice of the rows

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

Create a new lazy dataframe from a slice of a lazy dataframe’s rows

> [[a b]; [1 2] [3 4]] | polars into-lazy | polars slice 0 1 | describe
polars_lazyframe

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