How to Tailor A Column Chart for Communication

A practical example showing the simplification process in Python Altair

Drawing a column chart helps represent categories and values. However, a column chart is sometimes too overwhelming with useless content, and the audience may struggle to understand what it means. In this blog post, we propose a strategy to simplify a column chart when you have three main categories, such as:

• Yes/No/Maybe
• Male/Female/Other
• Good/Bad/Other
• …

The methodology involves the following steps:

1. Analyze data
2. Delete useless data
3. Approximate …

audience blog column communication data science data-storytelling data visualization example practical process programming-tips python strategy struggle values