The Gabors Data Analysis ecosystem
We wanted to create more than a textbook: an ecosystem of open materials for learning and teaching data analysis. Everything below is free and lives in our GitHub organization — code, courses, and interactive teaching tools.
Core textbook materials
da_case_studies
Full code for all 47 case studies in R, Python, and Stata — reproduce every figure and table in the book. Our most popular repository.
Data on OSF
Raw and clean versions of all datasets used in the case studies, hosted on the Open Science Framework.
Learn to code, from zero
Full open coding courses that accompany the textbook, taking you from zero to doing the case studies yourself. More about the courses →
Coding in R
Coding course to complete Data Analysis in R — by Ágoston Reguly with Gábor Békés.
Coding in Python
Python course to accompany the Data Analysis material — by Ádám Víg and Péter Duronelly with Ágoston Reguly and Gábor Békés.
Coding in Stata
Stata course for the textbook material — by László Tőkés with Ágoston Reguly and Gábor Békés.
Data analysis with AI
Data Analysis with AI — the course
A full open course on doing data analysis with LLMs and agentic tools: eight sessions, assignments, case studies, and a capstone.
Interactive dashboards
Play with the concepts in your browser instead of just reading about them. Our teaching dashboards cover eight topics across the book — distributions, generalization, measurement error, regression, confounders, common support, panel models, and the hotels case study.
All dashboards ★
One home for every interactive dashboard — eight and counting, no install needed.
Hotels Europe
Explore the flagship case study data — exploratory analysis, regression, and messy-data handling on real hotel prices.
Multiple linear regression
Build and interpret multiple regression models on earnings data, one coefficient at a time (chapter 10).
More teaching tools
Standalone apps and datasets we built for the classroom.
Austrian hotels wrangling dataset
A realistic, synthetically generated multi-table hotel dataset for practicing data wrangling and joins.
R vs Python vs Stata — debate data
Poll and survey data from the December 2022 CEU language-debate event. Anonymous; share if you use it.
Found a bug, or built something on top of these? Tell us or open an issue on the relevant repository — contributions are welcome.