databricks.koalas.Index.is_unique

property Index.is_unique

Return if the index has unique values.

Examples

>>> idx = ks.Index([1, 5, 7, 7])
>>> idx.is_unique
False

>>> idx = ks.Index([1, 5, 7])
>>> idx.is_unique
True

>>> idx = ks.Index(["Watermelon", "Orange", "Apple",
...                 "Watermelon"])
>>> idx.is_unique
False

>>> idx = ks.Index(["Orange", "Apple",
...                 "Watermelon"])
>>> idx.is_unique
True

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