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CategoricalIndex.remove_unused_categories()

CategoricalIndex.remove_unused_categories(*args, **kwargs) [source]

Removes categories which are not used.

Parameters:

inplace : boolean (default: False)

Whether or not to drop unused categories inplace or return a copy of this categorical with unused categories dropped.
Returns:

cat : Categorical with unused categories dropped or None if inplace.

See also

rename_categories, reorder_categories, add_categories, remove_categories, set_categories

doc_Pandas
doc_Pandas
2017-01-12 04:44:59
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