polars is-in for expression
Creates an is-in expression or checks to see if the elements are contained in the right series
Signature
> polars is-in {flags} (list)
Parameters
-
list: List to check if values are in.
Input/output types:
| input | output |
|---|---|
| polars_expression | polars_expression |
| polars_selector | polars_expression |
Examples
Creates a is-in expression using a list
> let df = ([[a b]; [one 1] [two 2] [three 3]] | polars into-df);
$df | polars with-column (polars col a | polars is-in [one two] | polars as a_in)
╭───┬───────┬───┬───────╮
│ # │ a │ b │ a_in │
├───┼───────┼───┼───────┤
│ 0 │ one │ 1 │ true │
│ 1 │ two │ 2 │ true │
│ 2 │ three │ 3 │ false │
╰───┴───────┴───┴───────╯Creates a is-in expression using a polars series
> let df = ([[a b]; [one 1] [two 2] [three 3]] | polars into-df);
$df | polars with-column (polars col a | polars is-in ([one two] | polars into-df) | polars as a_in)
╭───┬───────┬───┬───────╮
│ # │ a │ b │ a_in │
├───┼───────┼───┼───────┤
│ 0 │ one │ 1 │ true │
│ 1 │ two │ 2 │ true │
│ 2 │ three │ 3 │ false │
╰───┴───────┴───┴───────╯Creates a is-in expression using a polars expr
> let df = ([[a b]; [one 1] [two 2] [three 3]] | polars into-df);
$df | polars with-column (polars col a | polars is-in (polars lit [one two] | polars implode) | polars as a_in)
╭───┬───────┬───┬───────╮
│ # │ a │ b │ a_in │
├───┼───────┼───┼───────┤
│ 0 │ one │ 1 │ true │
│ 1 │ two │ 2 │ true │
│ 2 │ three │ 3 │ false │
╰───┴───────┴───┴───────╯
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https://www.nushell.sh/commands/docs/polars_is-in.html
