polars.Series.list.filter#

Series.list.filter(predicate: Expr) → Series[source]#

Filter elements in each list by a boolean expression, returning a new Series of lists.

Parameters:

predicate: A boolean expression evaluated on each list element. Use pl.element() to refer to the current element.

Examples

>>> import polars as pl
>>> s = pl.Series("a", [[1, 4], [8, 5], [3, 2]])
>>> s.list.filter(pl.element() % 2 == 0)
shape: (3,)
Series: 'a' [list[i64]]
[
    [4]
    [8]
    [2]
]