CategoricalIndex.remove_categories()
pandas.CategoricalIndex.remove_categories
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CategoricalIndex.remove_categories(*args, **kwargs)
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Removes the specified categories.
removals
must be included in the old categories. Values which were in the removed categories will be set to NaNParameters: removals : category or list of categories
The categories which should be removed.
inplace : boolean (default: False)
Whether or not to remove the categories inplace or return a copy of this categorical with removed categories.
Returns: cat : Categorical with removed categories or None if inplace.
Raises: ValueError
If the removals are not contained in the categories
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Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.CategoricalIndex.remove_categories.html