pandas.Series.is_unique — pandas 2.3.3 documentation (original) (raw)

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• Series
• pandas.Serie...

property Series.is_unique[source]#

Return boolean if values in the object are unique.

Returns:

bool

Examples

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

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