polars.Series.is_in#
- Series.is_in(other: Series | Collection[Any]) Series [source]#
Check if elements of this Series are in the other Series.
- Returns:
- Series
Series of data type
Boolean
.
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[i64]] [ [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 ]