reject
for filters
Remove the given columns or rows from the table. Opposite of `select`.
Signature
> reject ...rest
Parameters
...rest
: the names of columns to remove from the table
Input/output types:
input | output |
---|---|
record | record |
table | table |
Examples
Reject a column in the ls
table
> ls | reject modified
Reject a column in a table
> [[a, b]; [1, 2]] | reject a
╭───┬───╮
│ # │ b │
├───┼───┤
│ 0 │ 2 │
╰───┴───╯
Reject a row in a table
> [[a, b]; [1, 2] [3, 4]] | reject 1
╭───┬───┬───╮
│ # │ a │ b │
├───┼───┼───┤
│ 0 │ 1 │ 2 │
╰───┴───┴───╯
Reject the specified field in a record
> {a: 1, b: 2} | reject a
╭───┬───╮
│ b │ 2 │
╰───┴───╯
Reject a nested field in a record
> {a: {b: 3, c: 5}} | reject a.b
╭───┬───────────╮
│ │ ╭───┬───╮ │
│ a │ │ c │ 5 │ │
│ │ ╰───┴───╯ │
╰───┴───────────╯
Reject columns by a provided list of columns
> let cols = [size type];[[name type size]; [Cargo.toml toml 1kb] [Cargo.lock toml 2kb]] | reject $cols
Reject rows by a provided list of rows
> let rows = [0 2];[[name type size]; [Cargo.toml toml 1kb] [Cargo.lock toml 2kb] [file.json json 3kb]] | reject $rows
Notes
To remove a quantity of rows or columns, use skip
, drop
, or drop column
.