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Changing Font Size in Matplotlib Plots: Comprehensive Guide

Introduction:
Matplotlib is a versatile Python library for creating static, animated, and interactive visualizations. Modifying the font size of different plot elements can significantly improve the readability and presentation of these visualizations. This article provides a comprehensive guide on how to change the font size of all elements in a matplotlib plot.

Changing Font Size of Individual Elements:
To modify the font size of specific elements, such as tick labels, use the following rc() method:

<code class="python">import matplotlib 
matplotlib.rc('xtick', labelsize=20) 
matplotlib.rc('ytick', labelsize=20) </code>

Changing Font Size of All Elements:
To set the font size for all elements (ticks, labels, title) in a single step, use the rc() function with a font dictionary:

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

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

Alternatively, use the rcParams update method:

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

rcParams Method:

The rcParams method allows for more granular control over font properties, as shown below:

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

Customizing Matplotlib Page:

For a comprehensive list of customization options, refer to the Matplotlib Customizing page:

https://matplotlib.org/stable/tutorials/introductory/customizing.html

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