pyplot x axis labels code example
Example 1: change name of axis matplotlib
plt.xlabel('X axis')
plt.ylabel('Y axis')
Example 2: matplotlib axes labels
fig = plt.figure()
ax = fig.add_subplot(...)
ax.set_title('Title Here')
ax.set_xlabel('x label here')
ax.set_ylabel('y label here')
ax.set_zlabel('z label here')