polars fill-nan
For lazyframe.
Replaces NaN values with the given expression.
warning This command requires a plugin The
polars fill-nancommand 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 fill-nan {flags} (fill)
Parameters
fill: Expression to use to fill the NAN values.
Input/output types:
| input | output |
|---|---|
| polars_dataframe | polars_dataframe |
| polars_lazyframe | polars_lazyframe |
| polars_expression | polars_expression |
| polars_selector | polars_expression |
Examples
Fills the NaN values with 0
> [1 2 NaN 3 NaN] | polars into-df | polars fill-nan 0
╭───┬───╮
│ # │ 0 │
├───┼───┤
│ 0 │ 1 │
│ 1 │ 2 │
│ 2 │ 0 │
│ 3 │ 3 │
│ 4 │ 0 │
╰───┴───╯
Fills the NaN values of a whole dataframe
> [[a b]; [0.2 1] [0.1 NaN]] | polars into-df | polars fill-nan 0
╭───┬──────┬───╮
│ # │ a │ b │
├───┼──────┼───┤
│ 0 │ 0.20 │ 1 │
│ 1 │ 0.10 │ 0 │
╰───┴──────┴───╯
Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.