polars is-unique

For dataframe.

warning This command requires a plugin The polars is-unique 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 is-unique {flags}

Input/output types:

Examples

Create mask indicating unique values

> [5 6 6 6 8 8 8] | polars into-df | polars is-unique
╭───┬───────────╮
│ # │ is_unique │
├───┼───────────┤
│ 0 │ true      │
│ 1 │ false     │
│ 2 │ false     │
│ 3 │ false     │
│ 4 │ false     │
│ 5 │ false     │
│ 6 │ false     │
╰───┴───────────╯

Create mask indicating duplicated rows in a dataframe

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

Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.