polars str-strip-chars for dataframe
Strips specified characters from strings in a column
Signature
> polars str-strip-chars {flags} (pattern)
Flags
-
--start, -s: Strip from start of strings only. -
--end, -e: Strip from end of strings only.
Parameters
-
pattern: Characters to strip as either a string or polars expression.
Input/output types:
| input | output |
|---|---|
| polars_expression | polars_expression |
| polars_selector | polars_expression |
Examples
Strip characters from both ends of strings in a column
> [[text]; ["!!!hello!!!"] ["!!!world!!!"] ["!!!test!!!"]] | polars into-df | polars select (polars col text | polars str-strip-chars "!") | polars collect ╭───┬───────╮ │ # │ text │ ├───┼───────┤ │ 0 │ hello │ │ 1 │ world │ │ 2 │ test │ ╰───┴───────╯
Strip characters from both ends of strings in a column using an expression
> [[text]; ["!!!hello!!!"] ["!!!world!!!"] ["!!!test!!!"]] | polars into-df | polars select (polars col text | polars str-strip-chars (polars lit "!")) | polars collect ╭───┬───────╮ │ # │ text │ ├───┼───────┤ │ 0 │ hello │ │ 1 │ world │ │ 2 │ test │ ╰───┴───────╯
Strip characters from end of strings in a column
> [[text]; ["hello!!!"] ["world!!!"] ["test!!!"]] | polars into-df | polars select (polars col text | polars str-strip-chars --end "!") | polars collect ╭───┬───────╮ │ # │ text │ ├───┼───────┤ │ 0 │ hello │ │ 1 │ world │ │ 2 │ test │ ╰───┴───────╯
Strip characters from start of strings in a column
> [[text]; ["!!!hello"] ["!!!world"] ["!!!test"]] | polars into-df | polars select (polars col text | polars str-strip-chars --start "!") | polars collect ╭───┬───────╮ │ # │ text │ ├───┼───────┤ │ 0 │ hello │ │ 1 │ world │ │ 2 │ test │ ╰───┴───────╯
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https://www.nushell.sh/commands/docs/polars_str-strip-chars.html
