Added ``Frame.corr()``, ``Series.corr()``, and ``Batch.corr()``.
Added ``compression`` argument to ``StoreClientMixin`` exporters that write ZIPs.
Corrected issue with selection on zero-sized ``IndexHierarchy``.
0.9.13
Added ``to_zip_npy()`` and ``from_zip_npy()`` interfaces to ``Bus``, ``Batch``, ``Yarn``, and ``Quilt``.
Added ``test_example_gen.py`` to test and enforce automatic example generation.
Improved usage of ``__slots__`` throughout.
Continuous integration quality checks now using pylint 2.15.0 and isort 5.10.1
0.9.12
ErrorNPYEncode`` exceptions raised during authoring NPZ files or NPY directories now remove those files or directories.
``ErrorNPYEncode`` exceptions raised during ``to_zip_npz()`` now remove the archive.
Authoring NPYs to a pre-existing directory will now raise a ``RuntimeError``.
0.9.11
Supplying an ``IndexDatetime`` subclass as an ``explicit_constructor`` to an ``IndexAutoFactory`` now raises.
Corrected issue with ``fillna`` and ``fillfalsy`` functions when non-elemental fill values are supplied.
Updated ``arraykit`` to 0.1.13.
0.9.10
Corrected single depth selection issue with ``IndexHierarchy``.
0.9.9
Updated ``arraykit`` to 0.1.12.
Set minimum ``numpy`` to 1.18.5.
Added ``index_constructors`` parameter to ``Frame.relabel_shift_in()``.
Corrected issue when ``Frame.astype()`` called with an empty ``Frame``.
Extended ``via_values`` property to take optional consolidation arguments via ``__call__()`` constructor; usage of ``via_values`` instance returns same-typed, same-sized container.