how to change xticks font size in a matplotlib plot [duplicate]

Answer 1

Try to use tick_params function like here:

ax = plt.gca()
ax.tick_params(axis = 'both', which = 'major', labelsize = 24)
ax.tick_params(axis = 'both', which = 'minor', labelsize = 16)

You may specify axis like 'x' or 'y' instead of 'both'.