Closed
Description
Bug report
Bug summary
Tick labels on some datetime axes are not spaced regularly by default. Feel free to close if this behaviour is intended.
Code for reproduction
import numpy as np
from matplotlib import pyplot as plt
# Set up some datetime values
x = np.asarray(['2020-07-06', '2020-08-02', '2020-08-21', '2020-09-07',
'2020-09-25', '2020-10-14', '2020-11-04', '2020-11-22'],
dtype=np.datetime64)
# Plot the dates
fig, ax = plt.subplots()
ax.scatter(x, np.arange(len(x)))
# Optional, make the labels a bit more readable
plt.setp(ax.xaxis.get_ticklabels(), rotation=30)
# Get the tick locations and calculate spacings
locs = ax.xaxis.get_ticklocs()
deltas = np.diff(locs)
deltasActual outcome
# result of `deltas` statement
array([21., 10., 21., 10., 21., 9., 21., 10., 21.])
Expected outcome
The same plot but with regular spacing of ticks.
Matplotlib version
- Operating system: macOS Big Sur 11.0.1
- Matplotlib version: 3.2.2 (installed via
pipin a virtual environment) - Matplotlib backend (
print(matplotlib.get_backend())):module://ipykernel.pylab.backend_inline - Python version: 3.8.1 (default, Jun 21 2020, 11:47:47); [Clang 11.0.0 (clang-1100.0.33.17)]
- Jupyter version (if applicable):
- jupyter core : 4.6.3
- jupyter-notebook : 6.0.3
- qtconsole : 4.7.5
- ipython : 7.16.1
- ipykernel : 5.3.2
- jupyter client : 6.1.5
- jupyter lab : 2.2.9
- nbconvert : 5.6.1
- ipywidgets : 7.5.1
- nbformat : 5.0.7
- traitlets : 4.3.3
- Other libraries:
numpy==1.19.0