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dfr is-duplicated for dataframe

Creates mask indicating duplicated values.

Signature

> dfr is-duplicated {flags}

Input/output types:

input output
any any

Examples

Create mask indicating duplicated values

> [5666888] |dfr into-df|dfr is-duplicated
╭───┬───────────────╮
# │ is_duplicated │
├───┼───────────────┤
0false
1true
2true
3true
4true
5true
6true
╰───┴───────────────╯

Create mask indicating duplicated rows in a dataframe

> [[a, b]; [12] [12] [33] [33] [11]] |dfr into-df|dfr is-duplicated
╭───┬───────────────╮
# │ is_duplicated │
├───┼───────────────┤
0true
1true
2true
3true
4false
╰───┴───────────────╯

Tips: Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe flag

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https://www.nushell.sh/commands/docs/dfr_is-duplicated.html