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Why R? 2019 Conference

We are pleased to announce that Why R? 2019 Conference will be organized by the Why R? Foundation. The third official meeting of Polish R enthusiasts will be held in Warsaw 26-29 September 2019. As the meeting is held in English, we are happy to invite R users from other countries.

We are on Facebook, Twitter and LinkedIn.
If you have any questions feel free to contact us!
After movie from 2017
After movie from 2018



Steph Locke

Principal Consultant (GBR) | Locke Data

Jakub Nowosad

Institute of Geoecology and Geoinformation,
Adam Mickiewicz University

Marvin Wright

Leibniz Institute for Prevention Research
and Epidemiology

Sigrid Keydana

Applied Researcher at RStudio

Paula Brito

Faculty of Economics, University of Porto

Wit Jakuczun

WLOG Solutions


Conference Programme

Find the conference plan here. agenda

Invited Speakers

Leon Eyrich Jessen

Olga Mierzwa-Sulima

Artur Suchwałko


Why R? Pre-meetings



Faculty of Economic Sciences, University of Warsaw

Długa 44/50, Warsaw, Poland

Faculty of Economic Sciences at, University of Warsaw is an elite unit that educates an overall of 2000 students each year. Its educational offer is rich and diverse, and includes undergraduate, graduate and doctoral studies in economics and finance. Our programmes cover subjects falling within the domain of modern economic with compliance to high European standards. A recent evaluation of scientific institutes in Poland by the Ministry of Science and Higher Education has once again attested to the Faculty’s excellence in the field of economics in Poland that was awarded the top evaluation of A+.

The Faculty runs more than sixty national and international research projects, funded by, among others, the European Union, the National Centre for Research and Development, the National Science Centre, and the Ministry of Science and Higher Education. The projects range from behavioral economics to macroeconomic modeling. Faculty members consistently produce quality research output, much of it published in prestigious international journals and leading Polish journals.

Recommended Hotel

Ibis Warszawa Centrum

al. Solidarności 165, 00-876 Warsaw

Special Interest Groups


On the 27th of September we organize meetings of Special Interest Groups,
where participants of WhyR 2019 can discuss their experiences in three specific areas:

Diversity in Data Science

This board aims to inspire members of affinity groups to pursue careers in data science. We hope that this platform for networking will reduce the diversity of R community. Moderator: Barbara Sobkowiak.

Career-planning in Data Science

Participants of WhyR will have a chance to learn from more experienced R enthusiasts about their career paths. Moderator: Kamil Kosiński.

Teaching Data Science

Practitioners will share their experiences in introducing their students to basic and advanced concepts of data science. Moderator: Leon Eyrich Jessen.

Data Visualizations

Discuss data visualizations good practices and approaches to various presentation challenges. Moderator: Michał Burdukiewicz.

Ethics in Data Science

With the increased importance of machine learning, we are becoming more and more concerned about the ethics of data science. Moderator: Steph Locke.

Data Visualizations


For details see hackathon's website! Deadline for the registration is 13th September (end of day).! hackathon

Planned for Friday, 27th September


Each workshop takes around 3 hours and happens in the morning or afternoon session.

The description of proposed workshops can be found here.

Morning (9:00-12:30)

Afternoon (14:00-17:30)



Introduction to modern

Generalized Additive Models in R (with mgcv)

Matteo Fasiolo

University of Bristol

Jan Gorecki


introduction & time-series

Jan Gorecki



Straightforward introduction to

Deep Learning in R (with Keras)

Mikołaj Bogucki, Mikołaj Olszewski


MI2 Data Lab

auditor + DALEX: a powerful duet for validation and explanation of machine learning models

Alicja Gosiewska, Tomasz Mikołajczyk

MI2 Data Lab


Black is the new White - using eXplainable Artificial Intelligence in Business

Marcin Chlebus

Faculty of Economic Sciences, University of Warsaw, Data Juice Lab, Data Dontus

Jumping Rivers

Shiny Basics

Theo Roe

Jumping Rivers

Piotr Wojcik

Speeding up R wih C++ (Rcpp)

- from basics to more advanced applications

Piotr Wójcik, Faculty of Economic Sciences, University of Warsaw, Data Science Lab


Machine Learning Pipelines and Reproducible Research with mlr3 and drake

Jakob Richter, TU Dortmund University and Patrick Schratz, LMU Munich


Basics of spatial data analysis

Jakub Nowosad, Adam Mickiewicz University, Poznan

Could not happen without the support of sponsors!



Bringing the event!


Marcin Kosiński

Marcin Kosiński

Project Leader

Michał Burdukiewicz

Michał Burdukiewicz

Scientific Programme Officer

Klaudia Korniluk

Klaudia Korniluk

Design Manager

Jarosław Chilimoniuk

Jarosław Chilimoniuk

Logistics Manager

Scientific Committee

Bernd Bischl

Bernd Bischl

Stefan Rödiger

Stefan Rödiger

Piotr Wójcik

Piotr Wójcik