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BUG: DataFrame subplot with duplicated columns output incorrect result #10962

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merged 1 commit into from Sep 5, 2015

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  0.17.0
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@sinhrks @jreback
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sinhrks commented Sep 1, 2015

When DataFrame has duplicated column name, each subplot will contain all the lines with same name.

import pandas as pd
import numpy as np
df = pd.DataFrame(np.random.rand(5, 5), columns=list('aaaaa'))
df.plot(subplots=True)

figure_1

@sinhrks sinhrks added Bug Visualization labels Sep 1, 2015

sinhrks added this to the 0.17.0 milestone Sep 1, 2015

@jreback jreback commented on an outdated diff Sep 4, 2015

pandas/tests/test_graphics.py
@@ -1646,6 +1646,27 @@ def test_subplots_sharex_axes_existing_axes(self):
for ax in axes.ravel():
self._check_visible(ax.get_yticklabels(), visible=True)
+ @slow
+ def test_subplots_dup_columns(self):
+ df = DataFrame(np.random.rand(5, 5), columns=list('aaaaa'))
@jreback

jreback Sep 4, 2015

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add the issue/pr number as a comment
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jreback commented Sep 4, 2015

minor comment, lgtm, merged on pass
@sinhrks
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sinhrks commented Sep 5, 2015

Thanks for review. Fixed and merging.

@sinhrks sinhrks added a commit that referenced this pull request Sep 5, 2015

@sinhrks sinhrks Merge pull request #10962 from sinhrks/plot_dupcolumns 
BUG: DataFrame subplot with duplicated columns output incorrect result
 1c280cf

@sinhrks sinhrks merged commit 1c280cf into pandas-dev:master Sep 5, 2015
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sinhrks deleted the sinhrks:plot_dupcolumns branch Sep 5, 2015

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