"""
Sharing axis limits and views
=============================
It's common to make two or more plots which share an axis, e.g., two
subplots with time as a common axis. When you pan and zoom around on
one, you want the other to move around with you. To facilitate this,
matplotlib Axes support a ``sharex`` and ``sharey`` attribute. When
you create a :func:`~matplotlib.pyplot.subplot` or
:func:`~matplotlib.pyplot.axes` instance, you can pass in a keyword
indicating what axes you want to share with
"""
import numpy as np
import matplotlib.pyplot as plt
t = np.arange(0, 10, 0.01)
ax1 = plt.subplot(211)
ax1.plot(t, np.sin(2*np.pi*t))
ax2 = plt.subplot(212, sharex=ax1)
ax2.plot(t, np.sin(4*np.pi*t))
plt.show()