matplotlib set axis name code example

Example 1: change name of axis matplotlib

plt.xlabel('X axis')
plt.ylabel('Y axis')

Example 2: plt add axis name

from matplotlib import pyplot as plt    

fig = plt.figure()
plt.plot(data)
fig.suptitle('test title', fontsize=20)
plt.xlabel('xlabel', fontsize=18)
plt.ylabel('ylabel', fontsize=16)
fig.savefig('test.jpg')