How to change the font size on a matplotlib plot

How to change the font size on a matplotlib plot

You can change the font size of text elements in a Matplotlib plot, such as labels, titles, and tick labels, by specifying the fontsize parameter when setting these elements. Here's how to change the font size for different parts of a Matplotlib plot:

  1. Changing the Font Size for Titles and Labels:

    To change the font size for titles and labels, you can use the fontsize parameter when calling functions like plt.title(), plt.xlabel(), and plt.ylabel(). Here's an example:

    import matplotlib.pyplot as plt # Create a simple plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Set the font size for the title plt.title('Custom Font Size', fontsize=16) # Set the font size for x and y axis labels plt.xlabel('X-axis', fontsize=14) plt.ylabel('Y-axis', fontsize=14) plt.show()

  2. Changing the Font Size for Tick Labels:

    To change the font size for tick labels on the x and y axes, you can use the tick_params() function with the labelsize parameter:

    import matplotlib.pyplot as plt # Create a simple plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Set the font size for x and y axis tick labels plt.xticks(fontsize=12) plt.yticks(fontsize=12) plt.show()

  3. Changing the Font Size for Legends:

    To change the font size for legends, you can use the fontsize parameter when calling plt.legend():

    import matplotlib.pyplot as plt # Create a simple plot with a legend plt.plot([1, 2, 3, 4], [1, 4, 9, 16], label='Data') # Set the font size for the legend plt.legend(fontsize=14) plt.show()

You can adjust the fontsize values to suit your preferred font size for each element in your Matplotlib plot.

Examples

  1. Changing font size on matplotlib plot?

    • Description: This query seeks methods to adjust the font size of text elements (such as titles, labels, and ticks) on a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Modifying font size plt.rcParams.update({'font.size': 12})

  2. How to adjust font size of axis labels in matplotlib?

    • Description: This query focuses on modifying the font size of axis labels specifically on a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Changing font size of axis labels plt.xlabel('X-axis', fontsize=12) plt.ylabel('Y-axis', fontsize=12)

  3. Changing font size of title in matplotlib plot?

    • Description: This query aims to change the font size of the title of a matplotlib plot for better visibility.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Modifying font size of title plt.title('Example Plot', fontsize=14)

  4. How to modify font size of ticks on matplotlib plot?

    • Description: This query explores methods to adjust the font size of ticks on the axes of a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Adjusting font size of ticks plt.xticks(fontsize=10) plt.yticks(fontsize=10)

  5. Adjusting font size of legend in matplotlib plot?

    • Description: This query seeks ways to modify the font size of the legend on a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16], label='Data') # Changing font size of legend plt.legend(fontsize=12)

  6. How to change font size of text annotations on matplotlib plot?

    • Description: This query focuses on adjusting the font size of text annotations added to a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) plt.text(2, 10, 'Annotation', fontsize=12) # Modifying font size of annotation

  7. Changing font size of tick labels on matplotlib plot?

    • Description: This query aims to modify the font size of tick labels specifically on the axes of a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Adjusting font size of tick labels plt.tick_params(axis='both', labelsize=10)

  8. How to adjust font size of grid text on matplotlib plot?

    • Description: This query explores methods to adjust the font size of grid text displayed on a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) plt.grid(True) # Modifying font size of grid text plt.rc('grid', fontsize=10)

  9. Changing font size of axis numbers in matplotlib plot?

    • Description: This query seeks ways to modify the font size of numbers displayed on the axes of a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) # Adjusting font size of axis numbers plt.tick_params(axis='both', labelsize=10)

  10. How to modify font size of colorbar labels in matplotlib plot?

    • Description: This query focuses on adjusting the font size of labels displayed on the colorbar of a matplotlib plot.
    • Code Implementation:
    import matplotlib.pyplot as plt # Example plot with colorbar plt.imshow([[1, 2], [3, 4]]) plt.colorbar(label='Colorbar') # Changing font size of colorbar labels plt.colorbar().set_label(label='Colorbar', size=12)

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