🍩 Day 26: Donut Chart in Python

 

🍩 Day 26: Donut Chart in Python

🔹 What is a Donut Chart?

A Donut Chart is a variation of a pie chart with a hole in the center.
It shows part-to-whole relationships, just like a pie chart, but with better readability.

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🔹 When Should You Use It?

Use a donut chart when:

• You want a cleaner, modern look

• Showing percentage distribution

• You want space in the center for labels or totals

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🔹 Example Scenario

• Website traffic sources

• Budget allocation

• Product-wise revenue contribution

The donut chart highlights dominant categories clearly.

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🔹 Key Idea Behind It

👉 Circular chart representing 100%
👉 Inner hole reduces clutter
👉 Center can display total or key insight

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🔹 Python Code (Donut Chart)

import matplotlib.pyplot as plt 

labels = ['Product A', 'Product B', 'Product C', 'Product D'] 
sizes = [45, 25, 20, 10] 

fig, ax = plt.subplots() 
ax.pie(
 sizes, 
labels=labels,
 autopct='%1.1f%%',
 startangle=90, 
wedgeprops=dict(width=0.4) 
)
ax.set_title('Revenue Distribution') 
plt.show()

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🔹 Output Explanation

• Each slice shows percentage contribution

• The center hole improves clarity

• Width controls donut thickness

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🔹 Donut Chart vs Pie Chart

Aspect	Donut Chart	Pie Chart
Readability	Better	Average
Visual appeal	High	Basic
Center text	Possible	❌
Use case	Dashboards	Simple visuals