Stacked Bar Charts with Plotly Express

Long Format vs. Wide Format Data

Image by Bekir Donmez from Unsplash

Plotly Express

Plotly, a computing company headquartered in Montreal, Canada, developed plotly.py, an interactive, open-source visualization tool for Python. In 2019, the company released Plotly 4.0 which includes Plotly Express, a high-level wrapper fully compatible with the rest of the Plotly ecosystem.