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pandas.CategoricalIndex.dropna
CategoricalIndex.dropna(how='any')
[source]-
Return Index without NA/NaN values
Parameters: how : {‘any’, ‘all’}, default ‘any’
If the Index is a MultiIndex, drop the value when any or all levels are NaN.
Returns: valid : Index
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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.CategoricalIndex.dropna.html