dfr is-unique for dataframe

Creates mask indicating unique values.

WARNING

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

Signature

> dfr is-unique {flags}

Input/output types:

inputoutput
anyany

Examples

Create mask indicating unique values

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