Introduction to Data Visualization

Why Visualize?

Stakeholders don't read SQL results. They read charts.

Matplotlib Basics

import matplotlib.pyplot as plt

plt.figure(figsize=(10, 6))

plt.plot(df['month'], df['revenue'])

plt.title('Monthly Revenue')

plt.xlabel('Month')

plt.ylabel('Revenue ($)')

plt.show()

Bar Chart

plt.bar(df['category'], df['sales'])

plt.title('Sales by Category')

plt.show()

*Day 116: Seaborn for Beautiful Charts.*