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"""
=========
Stem plot
=========
`~.pyplot.stem` plots vertical lines from a baseline to the y-coordinate and
places a marker at the tip.
"""
import matplotlib.pyplot as plt
import numpy as np
x = np.linspace(0.1, 2 * np.pi, 41)
y = np.exp(np.sin(x))
plt.stem(x, y)
plt.show()
# %%
#
# The position of the baseline can be adapted using *bottom*.
# The parameters *linefmt*, *markerfmt*, and *basefmt* control basic format
# properties of the plot. However, in contrast to `~.pyplot.plot` not all
# properties are configurable via keyword arguments. For more advanced
# control adapt the line objects returned by `.pyplot`.
markerline, stemlines, baseline = plt.stem(
x, y, linefmt='grey', markerfmt='D', bottom=1.1)
markerline.set_markerfacecolor('none')
plt.show()
# %%
#
# .. admonition:: References
#
# The use of the following functions, methods, classes and modules is shown
# in this example:
#
# - `matplotlib.axes.Axes.stem` / `matplotlib.pyplot.stem`
#
# .. tags::
#
# plot-type: stem
# level: beginner
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