Python Crawling & Data Mining

Jun 7, 2022 · Fundamentals

Compute Cumulative Sums and Build Stacked Charts with Pandas

This tutorial demonstrates how to generate random product usage data, compute per‑product usage‑duration percentages with pandas, calculate cumulative sums, and create a horizontal stacked bar chart using Matplotlib, offering multiple pandas techniques such as groupby‑value_counts, unstack, and crosstab for clear visual analysis.