CategoricalIndex.has_duplicates
CategoricalIndex.order(return_indexer=False, ascending=True)
CategoricalIndex.is_monotonic_decreasing return if the index is monotonic decreasing (only
CategoricalIndex.is_integer()
CategoricalIndex.unique()
CategoricalIndex.argsort(*args, **kwargs)
CategoricalIndex.dropna(how='any')
CategoricalIndex.min(*args, **kwargs)
CategoricalIndex.copy(name=None, deep=False, dtype=None, **kwargs)
CategoricalIndex.is_monotonic alias for is_monotonic_increasing (deprecated)
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