polars.Series.is_in¶
- Series.is_in(other: Union[polars.internals.series.Series, List]) polars.internals.series.Series ¶
Check if elements of this Series are in the right Series, or List values of the right Series.
- Returns
- Boolean Series
Examples
>>> s = pl.Series("a", [1, 2, 3]) >>> s2 = pl.Series("b", [2, 4]) >>> s2.is_in(s) shape: (2,) Series: 'b' [bool] [ true false ]
>>> # check if some values are a member of sublists >>> sets = pl.Series("sets", [[1, 2, 3], [1, 2], [9, 10]]) >>> optional_members = pl.Series("optional_members", [1, 2, 3]) >>> print(sets) shape: (3,) Series: 'sets' [list] [ [1, 2, 3] [1, 2] [9, 10] ] >>> print(optional_members) shape: (3,) Series: 'optional_members' [i64] [ 1 2 3 ] >>> optional_members.is_in(sets) shape: (3,) Series: 'optional_members' [bool] [ true true false ]