import numpy as np import matplotlib.pyplot as plt fig = plt.figure() fig.subplots_adjust(top=0.8) ax1 = fig.add_subplot(211) ax1.set_ylabel('volts') ax1.set_title('a sine wave') t = np.arange(0.0, 1.0, 0.01) s = np.sin(2*np.pi*t) line, = ax1.plot(t, s, color='blue', lw=2) ax2 = fig.add_axes([0.15, 0.1, 0.7, 0.3]) n, bins, patches = ax2.hist(np.random.randn(1000), 50, facecolor='yellow', edgecolor='yellow') ax2.set_xlabel('time (s)')