pandas.Series.is_unique — pandas 3.0.0rc0+40.gecf28e538a documentation (original) (raw)

• API reference
• Series
• pandas.Series.is_unique

property Series.is_unique[source]#

Return True if values in the object are unique.

Returns:

bool

See also

Series.unique

Return unique values of Series object.

Series.drop_duplicates

Return Series with duplicate values removed.

Series.duplicated

Indicate duplicate Series values.

Examples

s = pd.Series([1, 2, 3]) s.is_unique True

s = pd.Series([1, 2, 3, 1]) s.is_unique False