polars count-null for dataframe

Counts null values.

This command requires a plugin

The polars count-null 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 count-null {flags}

Input/output types:

inputoutput
polars_dataframepolars_dataframe
polars_lazyframepolars_lazyframe

Examples

Counts null values

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