databricks.koalas.MultiIndex.has_duplicates

property MultiIndex.has_duplicates

If index has duplicates, return True, otherwise False.

Examples

>>> kdf = ks.DataFrame({'a': [1, 2, 3]}, index=list('aac'))
>>> kdf.index.has_duplicates
True

>>> kdf = ks.DataFrame({'a': [1, 2, 3]}, index=[list('abc'), list('def')])
>>> kdf.index.has_duplicates
False

>>> kdf = ks.DataFrame({'a': [1, 2, 3]}, index=[list('aac'), list('eef')])
>>> kdf.index.has_duplicates
True

databricks.koalas.MultiIndex.from_product databricks.koalas.MultiIndex.hasnans