polars lowercase
For dataframe.
Lowercase the strings in the column.
warning This command requires a plugin The
polars lowercasecommand resides in thepolarsplugin. To use this command, you must install and registernu_plugin_polars. See the Plugins chapter in the book for more information.
Command Type
plugin
Signature
> polars lowercase {flags}
Input/output types:
| input | output |
|---|---|
| polars_dataframe | polars_dataframe |
| polars_lazyframe | polars_lazyframe |
| polars_expression | polars_expression |
| polars_selector | polars_expression |
Examples
Modifies strings in a column to lowercase
> [[a]; [Abc]] | polars into-df | polars select (polars col a | polars lowercase) | polars collect
╭───┬─────╮
│ # │ a │
├───┼─────┤
│ 0 │ abc │
╰───┴─────╯
Modifies strings to lowercase
> [Abc aBc abC] | polars into-df | polars lowercase
╭───┬─────╮
│ # │ 0 │
├───┼─────┤
│ 0 │ abc │
│ 1 │ abc │
│ 2 │ abc │
╰───┴─────╯
Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.