BUG: Fixed issue with bar plots not stacking correctly when 'stacked' and 'subplots' are used together #61340

eicchen · Apr 23, 2025

closes BUG: df.plot() "Subplots" changes behavior of how values are stacked using the "Stacked" property #61018
Tests added and passed if fixing a bug or adding a new feature
All code checks passed.
Added type annotations to new arguments/methods/functions.
Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.

Added check for when stacked and subplots are used in conjunction for bar plots. And logic dictating offsets for individual subplots to account for plots with non-concurrent columns being graphed.

Currently, does not take into account column order in subplot entry (eg: (A, B) vs (B, A)) when stacking

…_stacking_fix

…clarification if it matters)

pandas/plotting/_matplotlib/core.py

pandas/tests/plotting/test_misc.py

pandas/plotting/_matplotlib/core.py

mroeschke · Apr 28, 2025

Thanks @eicchen02

eicchen added 15 commits March 21, 2025 21:06

test case for subplot stacking

8440dde

Removed overlooked print statement

350a7ec

Updated test to check other subplot in figure

b27d1ac

Merge commit '5736b9647068d31fdf8673d3528cb64e35060bac' into bar_plot…

46c6eaa

…_stacking_fix

Updated test cases to include more subplot stacking possibilities

1fe342a

removed savefig() left in test cases

de55789

Updated test cases to test more arrangements

e8a6f91

Completed function fix (order of subplot input does not matter, need …

0d9f5da

…clarification if it matters)

appeasing the great pre-commit formatter

b356028

Merge branch 'main' into bar_plot_stacking_fix

6cd8a51

Updated whatsnew

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Docstring adjustment

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Moved self.subplot check to a seperate bool

ddd3311

Added ignore where mypy thinks self.subplots is a bool

df51168

Actually addressed mypy typing

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