marginaleffects

Primary source of information: https://marginaleffects.com Free book, case studies, and vignettes are available there.

Package manual for R and Python, plus a guide to the companion book.

Book: Model to Meaning: How to Interpret Statistical Models in R and Python

• Author: Vincent Arel-Bundock (2026)
• Publisher: CRC Press
• Free online: https://marginaleffects.com (primary source with many case studies and vignettes)
• Print: https://routledge.com/9781032908724

Core framework: Five questions for every analysis

Every interpretation task can be decomposed into five disciplined questions: