polars into-nu

Converts a dataframe or an expression into nushell value for access and exploration.

warning This command requires a plugin The polars into-nu 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 into-nu {flags}

Flags

--rows, -n {number}: Number of rows to be shown.
--tail, -t: Shows tail rows.
--index, -i: Add an index column.

Input/output types:

input	output
polars_dataframe	table
polars_lazyframe	table
polars_expression	any
polars_group_by	any
polars_when	any
polars_datatype	any
polars_schema	any
polars_selector	any

Examples

Shows head rows from dataframe

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

Shows tail rows from dataframe

> [[a b]; [1 2] [5 6] [3 4]] | polars into-df | polars into-nu --tail --rows 1 --index
╭───┬───┬───╮
│ # │ a │ b │
├───┼───┼───┤
│ 2 │ 3 │ 4 │
╰───┴───┴───╯

Convert a col expression into a nushell value

> polars col a | polars into-nu --index
╭───────┬────────╮
│ expr  │ column │
│ value │ a      │
╰───────┴────────╯

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