💥 Day 27: Exploded Pie Chart in Python

 

💥 Day 27: Exploded Pie Chart in Python

🔹 What is an Exploded Pie Chart?

An Exploded Pie Chart is a pie chart where one or more slices are pulled out from the center to emphasize important categories.

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🔹 When Should You Use It?

Use an exploded pie chart when:

• You want to highlight a specific category

• One segment is more important or dominant

• You want to draw viewer attention instantly

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🔹 Example Scenario

• Highlighting highest revenue product

• Showing largest expense category

• Emphasizing key customer segment

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🔹 Key Idea Behind It

👉 Same structure as a pie chart
👉 Explosion separates selected slices
👉 Visual focus on important data point

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🔹 Python Code (Exploded Pie Chart)

import matplotlib.pyplot as plt

labels = ['Product A', 'Product B', 'Product C', 'Product D']
sizes = [50, 20, 15, 15]

explode = (0.1, 0, 0, 0) # explode Product A

plt.pie(
    sizes,
    labels=labels,
    explode=explode,
    autopct='%1.1f%%',
    startangle=90 
)

plt.title('Exploded Pie Chart – Sales Distribution')
plt.axis('equal')
plt.show()

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🔹 Output Explanation

• Product A slice is pulled outward

• Percentages show relative contribution

• Equal axis keeps the chart circular

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🔹 Exploded Pie vs Normal Pie

Aspect	Exploded Pie	Normal Pie
Emphasis	High	Low
Visual focus	Strong	Neutral
Use case	Highlight key slice	General distribution

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🔹 Key Takeaways

• Use explosion sparingly

• Highlight only important categories

• Too many exploded slices reduce clarity

• Best for storytelling visuals