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CLN: minor cleanups for MultiIndex.codes #24146

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Dec 7, 2018
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CLN: minor cleanups for MultiIndex.codes #24146

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3 changes: 2 additions & 1 deletion doc/source/whatsnew/v0.24.0.rst
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Expand Up @@ -1102,8 +1102,9 @@ Deprecations

- :attr:`MultiIndex.labels` has been deprecated and replaced by :attr:`MultiIndex.codes`.
The functionality is unchanged. The new name better reflects the natures of
these codes and makes the ``MultiIndex`` API more similar to the API for :class:`CategoricalIndex`(:issue:`13443`).
these codes and makes the ``MultiIndex`` API more similar to the API for :class:`CategoricalIndex` (:issue:`13443`).
As a consequence, other uses of the name ``labels`` in ``MultiIndex`` have also been deprecated and replaced with ``codes``:

- You should initialize a ``MultiIndex`` instance using a parameter named ``codes`` rather than ``labels``.
- ``MultiIndex.set_labels`` has been deprecated in favor of :meth:`MultiIndex.set_codes`.
- For method :meth:`MultiIndex.copy`, the ``labels`` parameter has been deprecated and replaced by a ``codes`` parameter.
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2 changes: 1 addition & 1 deletion pandas/core/indexes/frozen.py
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Expand Up @@ -4,7 +4,7 @@
These are used for:

- .names (FrozenList)
- .levels & .labels (FrozenNDArray)
- .levels & .codes (FrozenNDArray)

"""

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