matplotlib 3.5.1

>>> """
==========================
Creating adjacent subplots
==========================

To create plots that share a common axis (visually) you can set the hspace
between the subplots to zero. Passing sharex=True when creating the subplots
will automatically turn off all x ticks and labels except those on the bottom
axis.

In this example the plots share a common x axis but you can follow the same
logic to supply a common y axis.
"""
... import matplotlib.pyplot as plt
... import numpy as np
... 
... t = np.arange(0.0, 2.0, 0.01)
... 
... s1 = np.sin(2 * np.pi * t)
... s2 = np.exp(-t)
... s3 = s1 * s2
... 
... fig, axs = plt.subplots(3, 1, sharex=True)
... # Remove horizontal space between axes
... fig.subplots_adjust(hspace=0)
... 
... # Plot each graph, and manually set the y tick values
... axs[0].plot(t, s1)
... axs[0].set_yticks(np.arange(-0.9, 1.0, 0.4))
... axs[0].set_ylim(-1, 1)
... 
... axs[1].plot(t, s2)
... axs[1].set_yticks(np.arange(0.1, 1.0, 0.2))
... axs[1].set_ylim(0, 1)
... 
... axs[2].plot(t, s3)
... axs[2].set_yticks(np.arange(-0.9, 1.0, 0.4))
... axs[2].set_ylim(-1, 1)
... 
... plt.show()
...