8000 Bars are not visible in bar plot when log scale is enabled · Issue #9701 · matplotlib/matplotlib · GitHub
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Bars are not visible in bar plot when log scale is enabled #9701
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@laborleben

Description

@laborleben

When enabling log scale for the bar plot, the bars are not plotted properly and the plot is empty.

See also this bug report #163 and the corresponding fix #2147.

Commit dda42ab changed the default value of nonpos parameter from clip to mask which introduced the issue. I cannot tell whether clip should be default behavior or mask doesn't work as intended.

import matplotlib.pyplot as plt
plt.bar(x=[1,2,3], height=[1000,2,3])
plt.yscale("log")
plt.show()

Result is an empty plot. Saving to an image file or PDF doesn't make a change.

Adding

plt.yscale("log", nonposy="clip")

fixes that issue.

Additional info:
Latest Miniconda
Various platforms (Ubuntu 16.04, Windows 10, macOS)
Matplotlib 2.1.0, Qt5Agg (from Anaconda)

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