Bug summary
Based on #27466, the linelengths parameter of Axes.eventplot does not accept delta units, such as datetime.timedelta. This should work, as linelengths is something similar to width in bar.
Code for reproduction
fig, ax = plt.subplots(layout="constrained")
x_dates1 = np.array(
[datetime.datetime(2020, 6, 30), datetime.datetime(2020, 7, 22),
datetime.datetime(2020, 8, 3), datetime.datetime(2020, 9, 14),],
dtype=np.datetime64)
np.random.seed(19680801)
start_date = datetime.datetime(2020, 7, 1)
end_date = datetime.datetime(2020, 10, 15)
date_range = end_date - start_date
dates1 = start_date + np.random.rand(30) * date_range
dates2 = start_date + np.random.rand(10) * date_range
dates3 = start_date + np.random.rand(50) * date_range
colors = ['C1', 'C2', 'C3']
lineoffsets = np.array([
datetime.datetime(2020, 7, 1),
datetime.datetime(2020, 7, 15),
datetime.datetime(2020, 8, 1)
], dtype=np.datetime64)
linelengths = [datetime.timedelta(days=5), datetime.timedelta(days=2),
datetime.timedelta(days=3)]
ax.eventplot([dates1, dates2, dates3], colors=colors,
lineoffsets=lineoffsets, linelengths=linelengths)Actual outcome
Traceback (most recent call last):
File "/home/elliott/code/matplotlib/lib/matplotlib/axis.py", line 1766, in convert_units
ret = self.converter.convert(x, self.units, self)
File "/home/elliott/code/matplotlib/lib/matplotlib/dates.py", line 1829, in convert
return self._get_converter().convert(*args, **kwargs)
File "/home/elliott/code/matplotlib/lib/matplotlib/dates.py", line 1757, in convert
return date2num(value)
File "/home/elliott/code/matplotlib/lib/matplotlib/dates.py", line 449, in date2num
d = d.astype('datetime64[us]')
ValueError: Could not convert object to NumPy datetime
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/elliott/code/matplotlib/foo.py", line 31, in <module>
ax.eventplot([dates1, dates2, dates3], colors=colors,
File "/home/elliott/code/matplotlib/lib/matplotlib/__init__.py", line 1472, in inner
return func(
File "/home/elliott/code/matplotlib/lib/matplotlib/axes/_axes.py", line 1353, in eventplot
lineoffsets, linelengths = self._process_unit_info(
File "/home/elliott/code/matplotlib/lib/matplotlib/axes/_base.py", line 2566, in _process_unit_info
return [axis_map[axis_name].convert_units(data)
File "/home/elliott/code/matplotlib/lib/matplotlib/axes/_base.py", line 2566, in <listcomp>
return [axis_map[axis_name].convert_units(data)
File "/home/elliott/code/matplotlib/lib/matplotlib/axis.py", line 1768, in convert_units
raise munits.ConversionError('Failed to convert value(s) to axis '
matplotlib.units.ConversionError: Failed to convert value(s) to axis units: [datetime.timedelta(days=5), datetime.timedelta(days=2), datetime.timedelta(days=3)]Expected outcome
The plot should work, with some kind of date-based scale on the vertical axis.
Additional information
No response
Operating system
No response
Matplotlib Version
a2a2809
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
git checkout
Bug summary
Based on #27466, the
linelengthsparameter ofAxes.eventplotdoes not accept delta units, such asdatetime.timedelta. This should work, aslinelengthsis something similar towidthinbar.Code for reproduction
Actual outcome
Expected outcome
The plot should work, with some kind of date-based scale on the vertical axis.
Additional information
No response
Operating system
No response
Matplotlib Version
a2a2809
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
git checkout