polars.Series.unique

Series.unique(
    *,
    maintain_order: bool = False,
) → Series

Get unique elements in series.

null is considered to be a unique value for the purposes of this operation.

Parameters:

maintain_order

Maintain order of data. This requires more work.

Examples

>>> s = pl.Series("a", [1, 2, 2, 3])
>>> s.unique().sort()
shape: (3,)
Series: 'a' [i64]
[
    1
    2
    3
]