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_uniqueFalse

>>>idx=pd.Index([1,5,7])>>>idx.is_uniqueTrue

>>>idx=pd.Index(["Watermelon","Orange","Apple",..."Watermelon"]).astype("category")>>>idx.is_uniqueFalse

>>>idx=pd.Index(["Orange","Apple",..."Watermelon"]).astype("category")>>>idx.is_uniqueTrue