uniq for filters

Signature

> uniq {flags}

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: Compare input values case-insensitively
• --unique, -u: Return the input values that occur once only

Input/output types:

Examples

Return the distinct values of a list/table (remove duplicates so that each value occurs once only)

> [2334] |uniq
╭───┬───╮
│0│2│
│1│3│
│2│4│
╰───┴───╯

Return the input values that occur more than once

> [122] |uniq-d
╭───┬───╮
│0│2│
╰───┴───╯

Return the input values that occur once only

> [122] |uniq-u
╭───┬───╮
│0│1│
╰───┴───╯

Ignore differences in case when comparing input values

> ['hello''goodbye''Hello'] |uniq-i
╭───┬─────────╮
│0│hello│
│1│goodbye│
╰───┴─────────╯

Return a table containing the distinct input values together with their counts

> [122] |uniq-c
╭───┬───────┬───────╮
│# │ value │ count │
├───┼───────┼───────┤
│0│1│1│
│1│2│2│
╰───┴───────┴───────╯