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Merged
merged 7 commits into from
Aug 31, 2017
Merged

Api bar signature #9110

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e078f91
API: change signature of bar and barh
tacaswell Aug 27, 2017
5546eee
MNT: update pyplot.hist for changes to Axes.hist
tacaswell Aug 27, 2017
5bb1c8a
STY: whitespace fixes
tacaswell Aug 27, 2017
89c6a77
DOC: tweak markup a bit
tacaswell Aug 28, 2017
dd9c7b1
FIX: bug in docs inserted by _preprocess_data
tacaswell Aug 28, 2017
80355e0
DOC: add comment about use of lambdas to unpack args/kwrags
tacaswell Aug 28, 2017
7e1a65d
MNT: re-organize to simplify handling `None` as input
tacaswell Aug 28, 2017
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API: change signature of bar and barh 
Change the documented first position argument to x and y for
bar and barh respectively but still support passing in left and bottom
as keyword arguments.

closes #7954
closes #8327
closes #8527
closes #8882
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@tacaswell
tacaswell committed Aug 28, 2017
commit e078f918c9625d29e1e65964315aa23602de5ecd
22 changes: 22 additions & 0 deletions doc/api/api_changes/2017-08-27-TAC.rst
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@@ -0,0 +1,22 @@
Change to signatures of :meth:`~matplotlib.axes.Axes.bar` & :meth:`~matplotlib.axes.Axes.barh`
----------------------------------------------------------------------------------------------

For 2.0 the :ref:`default value of *align* <barbarh_align>` changed to
``'center'``. However this caused the signature of
:meth:`~matplotlib.axes.Axes.bar` and
:meth:`~matplotlib.axes.Axes.barh` to be misleading as the first parameters were
still *left* and *bottom* respectively::

bar(left, height, *, align='center', **kwargs)
barh(bottom, width, *, align='center', **kwargs)

despite behaving as the center in both cases. The methods now take ``*args, **kwargs``
is input and are documented to have the primary signatures of::

bar(x, height, *, align='center', **kwargs)
barh(y, width, *, align='center', **kwargs)

Passing *left* and *bottom* as keyword arguments to
:meth:`~matplotlib.axes.Axes.bar` and
:meth:`~matplotlib.axes.Axes.barh` respectively will warn.
Support will be removed in Matplotlib 3.0.
2 changes: 2 additions & 0 deletions doc/users/dflt_style_changes.rst
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Expand Up @@ -599,6 +599,8 @@ The default value of the ``linecolor`` kwarg for `~matplotlib.Axes.hexbin` has
changed from ``'none'`` to ``'face'``. If 'none' is now supplied, no line edges
are drawn around the hexagons.

.. _barbarh_align:

``bar`` and ``barh``
--------------------

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6 changes: 3 additions & 3 deletions examples/pie_and_polar_charts/nested_pie.py
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Expand Up @@ -44,17 +44,17 @@
left_middle = np.arange(0.0, 2 * np.pi, 2 * np.pi / 12)
left_outer = np.arange(0.0, 2 * np.pi, 2 * np.pi / 9)

ax.bar(left=left_inner,
ax.bar(x=left_inner,
width=2 * np.pi / 6, bottom=0, color='C0',
linewidth=2, edgecolor='w',
height=np.zeros_like(left_inner) + 5)

ax.bar(left=left_middle,
ax.bar(x=left_middle,
width=2 * np.pi / 12, bottom=5, color='C1',
linewidth=2, edgecolor='w',
height=np.zeros_like(left_middle) + 2)

ax.bar(left=left_outer,
ax.bar(x=left_outer,
width=2 * np.pi / 9, bottom=7, color='C2',
linewidth=2, edgecolor='w',
height=np.zeros_like(left_outer) + 3)
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