Accessing Materials

Internal: R forum meeting materials can be found locally on the internal network at Q:/Rforum. Each meeting has its own subfolder; if the subfolder is empty, there were no materials to share at that particular meeting.
Open / External: Meeting materials that are open source and of interest to a wider audience are shared or linked here in this repository.

Meetings

4R/um meetings are held monthly. Below is the chronological record of sessions, speakers, topics, and shared materials.

2026-10-23 – Joint meeting with CopenhagenR useR Group

Joint meeting organized together with CopenhagenR useR Group via Meetup.

Aksel Thomsen (Novo Nordisk): Open Source R development at Novo: Why are we doing it, and a short introduction to our packages. slides
Greger Dubrow (DTU Food): Using R at DTU Food – metadata, real-time analysis, and training. slides
Emil Thranholm (Statistics Denmark): History, current use, and future development of R at Statistics Denmark, with a focus on the local setup, when servers running the computations are detached from the internet. slides

2026-09-25 – Thomas Lin Pedersen: ggsql

Guest talk by Thomas Lin Pedersen (Posit), lead developer of {ggplot2} and author of {ggforce}, {patchwork}, {ragg}, {ggraph}, {ggfx}, and {gganimate}. Topic: {ggsql} – bridging ggplot2 syntax with SQL-native workflows. slides

2026-06-26 – IKX: fastverse

Presentation on high-performance computing in R: speeding up data processing 20x to 100x+.

Fastverse
{collapse} – Advanced and fast data transformation
{polars} – Blazingly fast DataFrame library in R

2026-05-29 – IKX: SAS to R conversion

Ilya Kashnitsky presents an approach to converting SAS code to R. slides

2026-04-24 – JOC & IKX: R course feedback

Joint session by JOC and IKX reviewing feedback from the in-house R intro course.

2026-03-27 – IKX: DB connection speed

Benchmarks for reading and writing Oracle tables from R (ROracle vs ODBC) against the STATPROD database. slides

2026-02-27 – IKX: Parquet

Using the arrow package to write and read Parquet files, compared with CSV for speed and file size.

2025-11-28 – PHP: dstmetadata

Presentation by PHP on the dstmetadata package for working with metadata from Statistics Denmark.

2025-10-24 – JHD: VS Code

Presentation by JHD on working with VS Code and R.

2025-09-26 – IKX: Quarto

Introduction to Quarto for scientific and technical publishing. slides

2025-05-16 – MNT: Maps DK

Crafting municipality (kommune) maps of Denmark in R, including a custom ggplot theme and helper functions in Danish and English, developed at DST Analysis unit.