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databricks.koalas.Series.is_unique
¶
property
Series.
is_unique
¶
Return boolean if values in the object are unique
Returns
is_unique
boolean
>>> ks.Series([1, 2, 3]).is_unique
True
>>> ks.Series([1, 2, 2]).is_unique
False
>>> ks.Series([1, 2, 3, None]).is_unique
True
databricks.koalas.Series.nunique
databricks.koalas.Series.quantile