uniq-by for filters

Return the distinct values in the input by the given column(s).

Signature

> uniq-by {flags} ...rest

Flags

• --count, -c: Return a table containing the distinct input values together with their counts
• --repeated, -d: Return the input values that occur more than once
• --ignore-case, -i: Ignore differences in case when comparing input values
• --unique, -u: Return the input values that occur once only

Parameters

• ...rest: the column(s) to filter by

Input/output types:

input	output
list<any>	list<any>
table	table

Examples

Get rows from table filtered by column uniqueness

> [[fruit count]; [apple 9] [apple 2] [pear 3] [orange 7]] | uniq-by fruit
╭───┬────────┬───────╮
│ # │ fruit  │ count │
├───┼────────┼───────┤
│ 0 │ apple  │     9 │
│ 1 │ pear   │     3 │
│ 2 │ orange │     7 │
╰───┴────────┴───────╯