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drmowinckels.io
ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
@drmowinckels.io
3K followers 630 following 1.7K posts
Staff scientists / RSE @LCBC_UiO & @LifebrainEU. She/Her.

PhD Cognitive Neurosciences 🧠

@rladies.org Global Team.

#Rstats #Nerd 🌈🏳️‍🌈

https://Drmowinckels.io
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drmowinckels.io
ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ @drmowinckels.io · Nov 10
One thing I am proud of creating is the #ggseg-universe.
A suite of #rstats packages to plot #brain atlas data.

Its mainly made for inflated cortical surfaces, and contains three main packages:
- ggseg, ggseg3d, ggsegExtra
+ 23 different atlases

ggseg.r-universe.dev/packages
Example of plotted ggseg atlas data ggseg hexagon logo ggseg3d hexagon logo ggsegExtra hexagon logo
drmowinckels.io
Managing a Hugo site gets complex fast - builds, dev servers, and getting dependencies where Hugo expects them. Here's how npm scripts solved our R-Ladies website workflow 🧵

#Hugo #NPM #WebDev #BuildTools #OpenSource #Automation
NPM json setup. ```json { "name": "hugo-rladies-theme-js", "private": true, "version": "0.1.0", "scripts": { "clean": "rm -rf assets/js/vendor assets/scss/vendor", "setup": "mkdir -p assets/js/vendor assets/scss/vendor", "build": "npm run clean && npm run setup && npm run sync:bootstrap && npm run sync:jquery", "sync:bootstrap": "cp node_modules/bootstrap/dist/js/bootstrap.bundle.min.js* assets/js/vendor/ 2>/dev/null || true && cp -r node_modules/bootstrap/scss assets/scss/vendor/bootstrap", "sync:jquery": "cp node_modules/jquery/dist/jquery.min.js* assets/js/vendor/ 2>/dev/null || true", "update": "npm update && npm run build", "postinstall": "npm run build" }, "dependencies": { "bootstrap": "^5.3.8", "jquery": "^3.7.0" } } ```
January 16, 2026 at 11:01 AM
Reposted by ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
rstats.blaze.email
Open call for the rOpenSci Champions Program 2026!

https://ropensci.org/blog/2026/01/12/programchamps2026/

#rstats #datascience
Open call for the rOpenSci Champions Program 2026!
Summary: Open call for the rOpenSci Champions Program 2026! Spanish program focused on Latin America with mentors and champions, January–February 2026.
ropensci.org
January 15, 2026 at 12:04 AM
Reposted by ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
brittanysbarker.bsky.social
📣Corvallis is a forming a new R-Ladies group and hosing their first event on Jan 22 at 5:30 pm at Common Fields. Details and an RSVP for the event are here: www.meetup.com/rladies-corv...

Please share widely!

@weare.rladies.org #Rstats #Rlang #R #oregon
January 15, 2026 at 1:36 AM
Reposted by ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
rstats.blaze.email
Contributing to base R with Coding Equity and Joy - Inside the R Contributors Project

https://r-consortium.org/posts/contributing-to-base-r-with-coding-equity-and-joy-inside-the-r-contributors-project/index.html

#rstats #datascience
Contributing to base R with Coding Equity and Joy - Inside the R Contributors Project
Summary: Ella Kaye discusses contributing to base R via the R Contributors project, Dev Days, and inclusive community-building with rainbowR and EDI.
r-consortium.org
January 14, 2026 at 9:04 PM
Reposted by ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
dariia.bsky.social
I am very happy to announce that I will be a keynote speaker at useR!2026 in Warsaw!
Hope to see many incredible members of #RStats community in person there 😀
user-conf.bsky.social useR! - The R User Conference @user-conf.bsky.social · 5d
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
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.
January 10, 2026 at 7:11 PM
drmowinckels.io
Spent last week debugging Hugo issues in our R-Ladies website - I wanted to add one page per Chapter. However, we have chapter data as Hugo site data, which doesn't render into pages, I needed to setup a content adapter, which I had never done before. Here's how I used Claude to solve it 🧵
January 10, 2026 at 4:10 PM
Reposted by ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
djnavarro.net
A request for #rstats help.

Motivated by a real-world problem I'm facing, I wrote a package designed to help new users wean themselves off using rm(list=ls()), and nudge them in the direction of better practice.

I would sincerely appreciate feedback before I send it to CRAN
Some thoughts on checking the R session – Notes from a data witch
More precisely, some thoughts on an R package I might send to CRAN, and I’d appreciate comments and criticism
blog.djnavarro.net
January 6, 2026 at 5:23 AM
Reposted by ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
rorylawless.com
Hello and Happy New Year friends. I've just published a new blog post that briefly outlines how to use @1password.bsky.social secrete references in your R code. I hope you find it useful.

"Using 1Password Secret References in R" rorylawless.com/posts/using-...

#databs #rstats
Using 1Password Secret References in R – Rory Lawless
rorylawless.com
January 3, 2026 at 3:57 AM
drmowinckels.io
Of all the things that exist on the internet. Right now, this clip from #grahamNorton is by far my favourite thing right now.

youtube.com/shorts/cV_tA...

❤️ Alexander Skarsgård ❤️ Miriam Margolyes
Alexander Skarsgård and Miriam Margolyes have history 🏠
#GrahamNortonShow #GrahamNorton #TheGNShow #miriammargolyes #alexanderskarsgard #nicolacoughlan Follow us here: Facebook: https://www.facebook.com/thegrahamnortonshow/ Instagram:…
youtube.com
December 30, 2025 at 8:16 PM
drmowinckels.io
My #RPackageAdvent2025 recap is live! 📦✨ Get the complete guide to modern R package development: setup, docs, testing, CI/CD, and CRAN submission. All 25 days of tips, tools, and best practices in one place! Dive in! #RStats #RPackageDevelopment
Link: https://drmo.site/8ny3eU
A festive digital illustration features the blue R logo wearing a red Santa hat with white trim on the left. To its right stands a green Christmas tree made entirely of curly braces arranged in a triangular shape. White and light-blue %>% pipe symbols float across a dark blue, starry background like snowflakes. A speech bubble above the R logo says “Ho Ho Ho! 📦” in red text. At the bottom, white text reads: “R Package Development Advent Calendar 2025” and below it, “25 Days of Coding Magic • Dec 1–25.
December 28, 2025 at 10:48 PM
drmowinckels.io
Excited to share my R Package Development Advent Calendar 2025 summary! 🎁 All 25 days of modern R pkg dev in one guide. Master `usethis`, GitHub Actions, `pkgdown`, `testthat`, & CRAN prep. Level up your R packages! 🚀 #RStats #RPackageAdvent2025 #Rpkg https://drmo.site/8ny3eU
A festive digital illustration features the blue R logo wearing a red Santa hat with white trim on the left. To its right stands a green Christmas tree made entirely of curly braces arranged in a triangular shape. White and light-blue %>% pipe symbols float across a dark blue, starry background like snowflakes. A speech bubble above the R logo says “Ho Ho Ho! 📦” in red text. At the bottom, white text reads: “R Package Development Advent Calendar 2025” and below it, “25 Days of Coding Magic • Dec 1–25.
December 28, 2025 at 10:37 PM
drmowinckels.io
We Made It! 🎉

25 days. Complete modern R package development workflow. From usethis automation to CRAN submission. You have everything you need!

#rstats #CRAN #RPackageAdvent2025 #ThatsAWrap
December 26, 2025 at 11:01 AM
drmowinckels.io
Day 25: CRAN Submission Checklist and cran-comments.md

Final steps for successful CRAN submission.

Pro Tip: Be proactive about communicating any unusual aspects of your package to CRAN reviewers.

#rstats #RPackageAdvent2025
December 25, 2025 at 11:01 AM
drmowinckels.io
Happy Christmas to all who celebrate, and to those who don't I hope you get to enjoy the end of the year.

We celebrated just the three of us, with a quiet and lovely celebration. After two Christmases that have been quite difficult, it was nice to have a semblance of normality.
image of a woman (me) with darl hair and glasses wearing mauve dress, sitting next to an evergreen tree decorated with lights and Christmas ornaments photo of a tabby cat sitting on a rug being incredibly cute
December 24, 2025 at 8:25 PM
drmowinckels.io
Day 24: rlang - Tidy Evaluation in Packages

Handle user expressions safely in package functions.

Pro Tip: Use {{ }} (embrace) for single arguments, ... for multiple arguments.
Resources: rlang.r-lib.org

#rstats #RPackageAdvent2025
my_summarise <- function(data, ...) { data |> dplyr::summarise(...) } my_mutate <- function(data, col, value) { data |> dplyr::mutate({{ col }} := value) } my_function <- function(...) { dots <- rlang::list2(...) # process dots }
December 24, 2025 at 11:02 AM
drmowinckels.io
Day 23: cli - Beautiful Command Line Interfaces

Create user-friendly messages and progress indicators.

Pro Tip: Use semantic markup like {.fn function_name} and {.val value} for consistent formatting.
Resources: cli.r-lib.org

#RpackageAdvent2025 #rstats
cli::cli_progress_bar("Processing files", total = length(files)) for (file in files) { # process file cli::cli_progress_update() } cli::cli_alert_success("Package built successfully!") cli::cli_alert_warning("Missing documentation for {.fn my_function}") cli::cli_abort("Invalid input: {.val {invalid_value}}")
December 23, 2025 at 11:01 AM
drmowinckels.io
This was such a struggle, but it's finally there! After struggling with graphql for a good while, not only is meetupr now ported to httr2, has a comprehensive test suite and proper OAuth handling, it's finally on CRAN!

rladies.org/meetupr/

#rstats #rladies
December 22, 2025 at 8:46 PM
drmowinckels.io
Day 22: S3, S4, and S7 Object Systems

Create robust object-oriented interfaces with R's object systems.

Pro Tip: Use S3 for simple classes, S4 for complex validation, S7 for modern OOP.
Resources: rconsortium.github.io/S7

#rstats #RPackageAdvent2025
December 22, 2025 at 11:01 AM
drmowinckels.io
Day 21: rhub - Multi-Platform Testing (Thread)

Test your package on multiple platforms before CRAN submission.

Resources: r-hub.github.io/rhub/

#rstats #RPackageAdvent2025
December 21, 2025 at 11:01 AM
drmowinckels.io
Day 20: Performance Testing with bench

Profile and benchmark your package functions.

Pro Tip: Include benchmarks in your test suite to catch performance regressions.
Resources: bench.r-lib.org

#rstats #RPackageAdvent2025
bench::mark( my_function(big_data), filter_gc = FALSE ) results <- bench::mark( old_approach = old_function(data), new_approach = new_function(data), check = FALSE, # Skip result equality check iterations = 100 ) plot(results)
December 20, 2025 at 11:00 AM
drmowinckels.io
Day 19: goodpractice - Package Health Checks

Get comprehensive feedback on package quality

goodpractice::gp()

Checks include:
⬩ Function length and complexity
⬩ Namespace usage
⬩ DESCRIPTION completeness
⬩ Code coverage

Resources: github.com/mangothecat/goodpractice

#rstats #RPackageAdvent2025
GitHub - ropensci-review-tools/goodpractice: Advice on R Package Building
Advice on R Package Building. Contribute to ropensci-review-tools/goodpractice development by creating an account on GitHub.
github.com
December 19, 2025 at 11:01 AM
Reposted by ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
grrrck.xyz
For months I've had a pesky message that shows up in my #RStats test logs and today I realized I can figure out exactly where it's coming from with testthat's location reporter

Rscript -e 'devtools::test(reporter = "location")' 2>&1 | tee test.log
Logs from testing with the location reporter. The logs show the location of each expectation, and the message "You found me!" where an unexpected `message()` was emitted between lines 20 and 24 of test-btw_client.R
December 18, 2025 at 3:44 PM
drmowinckels.io
Day 18: Use linters!

Maintain consistent, readable code style automatically.

Usage:
lintr::lint_package()
styler::style_pkg()

Pro Tip: Add both to pre-commit hooks for automatic code formatting.
Resources: lintr.r-lib.org

#rstats #RPackageAdvent2025
lintr::lint_package() styler::style_pkg() # .lintr file in project root linters: linters_with_defaults( line_length_linter(120), commented_code_linter = NULL )
December 18, 2025 at 11:01 AM
drmowinckels.io
Day 17: vcr - Recording API Calls for Tests

Record real API responses for reliable, fast tests without hitting live APIs.

Pro Tip: Commit cassette files to git for reproducible tests across environments.
Resources: docs.ropensci.org/vcr

#rstats #RPackageAdvent2025
# In vignette setup vcr::use_cassette("demo_data", { demo_data <- fetch_api_data("example") }) test_that("API returns expected data", { use_cassette("github_api", { response <- httr::GET("https://api.github.com/users/octocat") expect_equal(httr::status_code(response), 200) }) })
December 17, 2025 at 11:02 AM
drmowinckels.io
Day 16: Testing with Mocks using testthat
Test functions that depend on external resources using testthat's built-in mocking.

Pro Tip: Use local_mocked_bindings() to mock functions within the test scope only.
Resources: testthat.r-lib.org

#rstats #RPackageAdvent2025
December 16, 2025 at 11:01 AM