How can I change the font size of ticks of axes object in Matplotlib?

To change the font size of ticks of axes object in matplotlib, we can take the following steps −

• Create x and y data points using numpy.

• Using subplots() method, create a figure and a set of subplots (fig and ax).

• Plot x and y data points using plot() method, with color=red and linewidth=5.

• Set xticks with x data points.

• Get the list of major ticks using get_major_ticks() method.

• Iterate the major ticks (from step 5), and set the font size and rotate them by 45 degrees.

• To display the figure, use show() method.

Example

import numpy as np from matplotlib import pyplot as plt plt.rcParams["figure.figsize"] = [7.00, 3.50] plt.rcParams["figure.autolayout"] = True x = np.linspace(-2, 2, 10) y = np.sin(x) fig, ax = plt.subplots() ax.plot(x, y, c='red', lw=5) ax.set_xticks(x) for tick in ax.xaxis.get_major_ticks():    tick.label.set_fontsize(14)    tick.label.set_rotation('45') plt.tight_layout() plt.show()

Output