pandas.CategoricalIndex.append
CategoricalIndex.append(other)-
Append a collection of CategoricalIndex options together
Parameters: other : Index or list/tuple of indices Returns: appended : Index Raises: ValueError if other is not in the categories
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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.CategoricalIndex.append.html