pandas.Index.is_unique#
- Index.is_unique[source]#
Return if the index has unique values.
- Returns
- bool
See also
Index.has_duplicates
Inverse method that checks if it has duplicate values.
Examples
>>> idx = pd.Index([1, 5, 7, 7]) >>> idx.is_unique False
>>> idx = pd.Index([1, 5, 7]) >>> idx.is_unique True
>>> idx = pd.Index(["Watermelon", "Orange", "Apple", ... "Watermelon"]).astype("category") >>> idx.is_unique False
>>> idx = pd.Index(["Orange", "Apple", ... "Watermelon"]).astype("category") >>> idx.is_unique True