useR! - The R User Conference

Promotional graphic for the useR! 2026 Conference in Warsaw, held July 6th–9th at the Warsaw School of Economics and online. The left side features a 2x2 grid of colorful squares (blue, yellow, orange, and purple) showing four iterations of a fractal pattern. The right side features a portrait of Keynote Speaker Peter Dalgaard, a man with grey hair and a goatee, wearing a dark blue button-down shirt.

Ever wonder how R is actually governed?
At #useR2026, R Core veteran Peter Dalgaard traces the project’s evolution—from its 90s roots to the modern roles of CRAN and the R Foundation. A must-watch on the future of #rstats sustainability. @pdalgd.bsky.social

user2026.r-project.org

Promotional poster for the useR! 2026 Conference in Warsaw, scheduled for July 6–9 at the Warsaw School of Economics and online. The right side features a portrait of keynote speaker Kari Jordan, a Black woman with bright teal curly hair and a warm smile, wearing a pink blazer. The left side displays the conference title and four colorful squares—blue, yellow, orange, and purple—each containing a black geometric pattern representing iterations of a Sierpinski carpet fractal.

We are thrilled to announce Dr. Kari L. Jordan (@drkariljordan.carpentries.org) as a Keynote Speaker for useR! 2026 in Warsaw! Dr. Jordan will from her knowledge and experience deliver her talk: "The Work Behind the Work: Sustaining R Through Community"

user2026.r-project.org

#rstats #useR2026

A poster for the "USER! 2026 CONFERENCE WARSAW," which is scheduled for "6th-9th JULY 2026" at "WARSAW SCHOOL OF ECONOMICS & ONLINE." The poster announces "Keynote Speaker Dariia Mykhailyshyna." On the right is a photo of Dariia Mykhailyshyna, a woman with brown hair wearing glasses and a white t-shirt with "KYIV" text and an illustration of a building. Below the conference details are four colored squares (blue, yellow, orange, purple) showing a progression of a fractal geometric pattern, starting from a single square.

We are honored to announce Dariia Mykhailyshyna (@dariia.bsky.social) as a Keynote for useR! 2026 in Warsaw!

A postdoctoral researcher at the Kyiv School of Economics and a recent PhD graduate from the University of Bologna, Dariia has been an avid R user for seven years.
user2026.r-project.org

YouTube video by useR! Conference Every eclipse visible from your current location for the rest of your life timothy bender

We have started to release the videos! What are your favorite talks? Check out "Every Eclipse Visible from Your Current Location for the Rest of Your Life (with shiny)" by Tim Bender, and our YouTube channel youtu.be/G_jb2VB0p2w
as the others are released.

user2026.r-project.org
#RStats #user2025

Still awesome even though it is for another language!

A promotional image for the UseR! Conference. Top text: "UseR! Conference, 7-9 July, 2026, Warsaw". Image: A scenic photograph of the Warsaw, Poland skyline at sunset, featuring prominent skyscrapers like the Palace of Culture and Science bathed in golden light. Bottom section: A text box with the useR! logo in the corner. The text reads: "Why Sponsor useR! 2026? useR!2026 brings together R users, developers, and enthusiasts from around the world. Your sponsorship helps us maintain affordable registration rates while delivering a high-quality conference experience."

Support Open-Source Data Science-Sponsor UseR! 2026
Join us in Warsaw 6–9 July 2026 at the premier event for R. As a sponsor, you help power an inclusive, high-impact event while reaching thousands of researchers, developers, and educators.
user2026.r-project.org/about/sponso...

#RStats #useR2026

You can watch Hadley's keynote at this link: www.youtube.com/live/ctc2kx3...

#useR2025

Thank you for being a part of the conference Jakub! The keynotes for the in-person conference will be live streamed, and meanwhile here is the virtual playlist! www.youtube.com/playlist?lis...

#user2025

Just checked #useR2025 registrations and we're just 44 people shy of hitting 1000 signups for the virtual conference! If you're in the mood for some #RStats from the comfort of your home, register at user2025.r-project.org/register and join the fun!

Promotional poster for the useR! 2025 conference at Duke University, Durham, NC, USA. The design features the event logo with a blue bull and “useR! 2025” text. Below it, the event details note August 8–10, 2025 for the in-person conference and August 1, 2025 for the virtual one. A banner reads “Ticket Sales End August 1st.” The background image shows a tree-lined road in autumn leading toward Duke Chapel.

Ticket Sales end on August 1st!

Register for in-person and virtual events:
user2025.r-project.org/register

useR! 2025 will be held from Friday, August 8th to Sunday, August 10th, Duke University in Durham, NC, USA.
#rstats #useR2025

Registration deadline is August 1!

A computer monitor is centered on a blue background, displaying a virtual event announcement. The screen shows a scenic autumn road leading to a prominent university building with a tower. Overlaid on this background are three large, semi-transparent oval text bubbles. The top bubble reads "useR! 2025," the middle one says "Virtual Event," and the bottom one states "August 1, 2025." In the bottom left corner of the overall image is the "useR! 2025" logo, featuring a stylized "R" and a bull.

Less than 50 tickets left! If you are looking to network useR! 2025 will not disappoint!

Register for in-person and virtual events:
user2025.r-project.org/register

useR! 2025 will be held from Friday, August 8th to Sunday, August 10th, Duke University in Durham, NC, USA.
#rstats #useR2025

A large blue graphic promoting "useR! 2025" is shown. The main section on the left details information about the conference: "8 - 10 August 2025," "Penn Pavilion, Duke University," "Durham, North Carolina," and "Hosted by Duke University and Duke Center for Computational Thinking." Below this, there's a notice about ticket sales: "Normal ticket sales will be ending July 15th. Get yours before the price increase!" A table compares "Regular" and "Late & Onsite" prices for "Student," "Academia," and "Industry" tickets. Prices are listed as $200, $450, and $650 for regular, and $250, $550, and $800 for late/onsite. The lower left corner features the "useR! 2025" logo with a bull illustration. The background appears to be a blurred image of a large conference hall with attendees.

Normal ticket sales end and Late/Onsite sales on July 15th so make sure to get yours by Tuesday!

Register for in-person and virtual events:
user2025.r-project.org/register

useR! 2025 will be held from Friday, August 8th to Sunday, August 10th, Duke University in Durham, NC, USA.
#rstats #useR2025

Reminder: The useR! @user-conf.bsky.social conference is having a free virtual event August 1, a week before the in-person one. Registration still open! #RStats
user2025.r-project.org/register

Honestly I almost did it again a moment ago lol.

A slide for a keynote presentation features a smiling man with a beard and short hair, wearing a shirt with a polka-dot bow tie, in a circular portrait at the top. The word "KEYNOTE" is in the upper left, and the "useR! 2025" logo is in the upper right. Below the portrait, the name "Hadley Wickham" is displayed, followed by "Posit PBC." A gray banner below his name reads, "I wrote this talk with an LLM." The bottom half of the slide contains the abstract for his talk, detailing an exploration of the relationship between data scientists and large language models, specifically how AI assistance can augment the R user's workflow. It notes that the abstract was generated by Claude Sonnet 3.7 and lightly edited.

Hadley Wickham (@hadley.nz) is a developer and teacher whose impact on the R ecosystem is immense. He is Chief scientist at @posit.co where he leads the Tidyverse team. His keynote "I wrote this talk with an LLM" explores how AI can help rather than replace data scientists.

user2025.r-project.org

A smiling woman with curly brown hair and glasses is featured in a circular portrait at the top of a presentation slide. She is wearing a gray blazer with a red necklace. Above her portrait, to the left, is the word "KEYNOTE" in large blue letters, and to the right is the "useR! 2025" logo. Below her image, her name "Frauke Kreuter" is written, followed by "LMU Munich / University of Maryland." A gray banner beneath her name reads, "Data in the Balance: Incentives, Independence, and Public Statistics." The bottom half of the slide contains a block of text detailing the content of the keynote address, which focuses on challenges in government statistics and the importance of data investment and statistical infrastructure.

Why does "good" data still lack agreed-upon metrics? Frauke Kreuter will tackle this and other critical challenges facing statistical systems in her keynote talk for useR! 2025. Join us to explore how we can strengthen our data infrastructure.
user2025.r-project.org/register

#RStats #useR2025

Poster for useR! 2025 conference. Top section features the conference logo with a blue bull silhouette and text 'useR! 2025 Duke University Durham, NC USA'. Below, white text on a dark gray background indicates 'In-person event August 8-10, 2025' and 'Virtual event August 1, 2025'. A prominent translucent banner across the middle reads 'Registration is now open!'. The bottom half of the poster shows a photograph of a tree-lined road in autumn leading towards a tall, gothic-style university building in the distance.

Join this gathering of leaders in industry, academia, and the government to network while you increase your expertise in R.

Register for in-person and virtual events:
user2025.r-project.org/register

useR! 2025 will be held Friday, August 8th to Sunday, August 10th at Duke University.

#RStats

Alt text: A promotional graphic for a keynote speech titled "Powerful simulation pipelines with {targets}" by Will Landau, Senior Research Scientist at Eli Lilly and Company. The background showcases a scenic view of a tree-lined pathway leading to a tall, gothic-style building. The event is associated with useR! 2025, indicated by the logo in the bottom left corner.

We are overjoyed to welcome Will Landau as a keynote speaker for useR! 2025. He is a Senior Research Scientist at Eli Lilly and Company and will present his talk Powerful simulation pipelines with {targets}.

user2025.r-project.org/register
#RStats #useR2025

Oh yes!

A promotional image for the useR! 2025 Virtual Registration. The image features a laptop with a YouTube logo on the screen, placed on a wooden table. In the background, green leaves are visible through a window. Above the laptop, a blue banner with yellow text reads "useR! 2025 Virtual Registration." On the bottom left corner, a logo displays "useR! 2025" alongside a blue bull. On the bottom right corner, there is a QR code.

Registration is open for the useR! 2025 Virtual Program! The program features speakers from a diverse range of industries and parts of the world, covering topics from the basic to the advanced. Registration is free with options for suggested donations.

user2025.r-project.org/register

#RStats

Promotional poster for Yanina Bellini Saibene’s keynote talk, “We R Together. How to learn, use and improve a programming language as a community.” The design includes logos for rOpenSci, R-Ladies, and Universidad Austral, and emphasizes community collaboration, skill-sharing, and innovative learning in coding and data science.

@yabellini.bsky.social is a pillar of many R communities so we are thrilled she will be sharing her wisdom with us for her keynote. Yanina is a Professor at Universidad Austral, Buenos Aires, rOpenSci Community Manager, and R-Ladies Project Lead.

user2025.r-project.org/register

#RStats #useR2025

The image captures a vibrant poster session at the useR! R Conference, held in Salzburg in July 2024. The setting is a spacious conference hall with attendees engaging in discussions around research posters mounted on large display boards. Participants, a mix of data scientists, researchers, and R enthusiasts, are seen standing in small groups, gesturing towards the posters, and exchanging insights. Some individuals are holding conference materials or notebooks, while others are listening attentively to presenters explaining their work. The posters feature graphs, charts, and R code snippets, reflecting cutting-edge developments in R programming for statistical analysis and data science. The atmosphere is collaborative and professional, with attendees dressed in business casual attire. In the background, additional posters and conference branding related to R programming and statistical computing reinforce the theme of the event. The lighting in the room is bright, enhancing visibility and interaction.

🚀 UseR! 2025: Medicine & Life Sciences

🔬 Oncology – Modeling for real-world research
📍 Epidemiology – Mapping data
💊 Clinical Trials – Treatment effect analysis & inference
🧠 Neurology – EEG & eye-tracking
🧬 Genomics – Tidy tools for biomedical research
user2025.r-project.org

#UseR2025 #RStats

The full In-person program is out! The conference features three days of keynotes, tutorials, and talks to help you deepen your knowledge.

Schedule
user2025.r-project.org/program/in-p...

Get tickets
user2025.r-project.org/register

#useR #RStats

Hadley Wickham(@hadley.nz) is a developer and teacher with immense impact on the R ecosystem. He is Chief scientist at @posit.co where he leads the Tidyverse team. His talk "I wrote this talk with an LLM" explores how AI can help rather than replace data scientists.
Register: user2024.r-project.org

Headshot of Simon Urbanek, keynote speaker for useR! 2025 along with details on his talk.

We are grateful to have Simon Urbanek as a keynote speaker for useR! 2025. He is a member of the R core team, working on the maintenance of R for MacOS, creating binaries. He is an Associate Professor at The University of Auckland Department of Statistics.

Register: user2024.r-project.org
#RStats

A room full of people looking at a presentation with two speakers. Contains text about the conference.

The full In-person program is out! The conference features three days of keynotes, tutorials, and talks to help you deepen your knowledge.

Schedule
user2025.r-project.org/program/in-p...

Get tickets
user2025.r-project.org/register

#useR #RStats

Today is the last day to register with early bird pricing! Hope to see you in Durham - I live here and its a great place. Plus what looks to be a good conference

useR! Early Bird sales end this Wednesday on April 30th!

REMINDER!!! Early Bird Registration for useR! 2025 is open until April 30th!

Join this gathering of leaders in industry, academia, and the government to network while you increase your expertise in #R.
user2025.r-project.org/register

#useR2025 #RStats #coding #statistics #coding #data

Headshot of Hadley Wickham chief scientist at POSIT, keynote speaker for useR! 2025, features a white background, useR! logo, and text about his talk.

@hadley.nz Wickham is a developer and teacher whose impact on the R ecosystem is immense. He is Chief scientist at @posit.co where he leads the Tidyverse team. His keynote "I wrote this talk with an LLM" explores how AI can help rather than replace data scientists.

Register: user2024.r-project.org