How to Change Font Size for Various Elements in Matplotlib Plots?

Modifying Font Size on Matplotlib Plots

When creating visualizations using matplotlib, it's often necessary to adjust the font size for readability and visual clarity. While it's known that tick label sizes can be manipulated through matplotlib.rc('xtick', labelsize=20), the question arises: "How to change the font size for other elements?"

According to the matplotlib documentation, font manipulation is accomplished using the font parameter:

<code class="python">font = {'family' : 'normal',
        'weight' : 'bold',
        'size'   : 22}

matplotlib.rc('font', **font)</code>

This approach sets the font for all elements to the specifications defined by the font dictionary. Alternatively, the rcParams method can be employed:

<code class="python">matplotlib.rcParams.update({'font.size': 22})</code>

Or, for a more concise syntax:

<code class="python">import matplotlib.pyplot as plt
plt.rcParams.update({'font.size': 22})</code>

For a comprehensive list of available properties, refer to the Customizing matplotlib page.

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