Index.
is_unique
Return if the index has unique values.
Examples
>>> idx = ps.Index([1, 5, 7, 7]) >>> idx.is_unique False
>>> idx = ps.Index([1, 5, 7]) >>> idx.is_unique True
>>> idx = ps.Index(["Watermelon", "Orange", "Apple", ... "Watermelon"]) >>> idx.is_unique False
>>> idx = ps.Index(["Orange", "Apple", ... "Watermelon"]) >>> idx.is_unique True