ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ
@drmowinckels.io
Staff scientists / RSE @LCBC_UiO & @LifebrainEU. She/Her.
PhD Cognitive Neurosciences 🧠
@rladies.org Global Team.
#Rstats #Nerd 🌈🏳️🌈
https://Drmowinckels.io
PhD Cognitive Neurosciences 🧠
@rladies.org Global Team.
#Rstats #Nerd 🌈🏳️🌈
https://Drmowinckels.io
My 2025 Year in Review is out! 📝 A year of deliberate work amidst post-COVID recovery. Highlights: deep dives into #RStats APIs w/ #httr2, the R Package Dev Advent Calendar, & `ggseg` improvements. Focus on sustainable, impactful work. Read more & share your 2025! 👇 https://drmo.site/8NNsxa
January 19, 2026 at 12:20 PM
My 2025 Year in Review is out! 📝 A year of deliberate work amidst post-COVID recovery. Highlights: deep dives into #RStats APIs w/ #httr2, the R Package Dev Advent Calendar, & `ggseg` improvements. Focus on sustainable, impactful work. Read more & share your 2025! 👇 https://drmo.site/8NNsxa
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
#Hugo #NPM #WebDev #BuildTools #OpenSource #Automation
January 16, 2026 at 11:01 AM
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
#Hugo #NPM #WebDev #BuildTools #OpenSource #Automation
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
Link: https://drmo.site/8ny3eU
December 28, 2025 at 10:48 PM
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
Link: https://drmo.site/8ny3eU
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
December 28, 2025 at 10:37 PM
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
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
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
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
25 days. Complete modern R package development workflow. From usethis automation to CRAN submission. You have everything you need!
#rstats #CRAN #RPackageAdvent2025 #ThatsAWrap
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
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
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
Final steps for successful CRAN submission.
Pro Tip: Be proactive about communicating any unusual aspects of your package to CRAN reviewers.
#rstats #RPackageAdvent2025
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.
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.
December 24, 2025 at 8:25 PM
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.
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.
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
Handle user expressions safely in package functions.
Pro Tip: Use {{ }} (embrace) for single arguments, ... for multiple arguments.
Resources: rlang.r-lib.org
#rstats #RPackageAdvent2025
December 24, 2025 at 11:02 AM
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
Handle user expressions safely in package functions.
Pro Tip: Use {{ }} (embrace) for single arguments, ... for multiple arguments.
Resources: rlang.r-lib.org
#rstats #RPackageAdvent2025
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
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
December 23, 2025 at 11:01 AM
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
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
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
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
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
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
Day 21: rhub - Multi-Platform Testing (Thread)
Test your package on multiple platforms before CRAN submission.
Resources: r-hub.github.io/rhub/
#rstats #RPackageAdvent2025
Test your package on multiple platforms before CRAN submission.
Resources: r-hub.github.io/rhub/
#rstats #RPackageAdvent2025
December 21, 2025 at 11:01 AM
Day 21: rhub - Multi-Platform Testing (Thread)
Test your package on multiple platforms before CRAN submission.
Resources: r-hub.github.io/rhub/
#rstats #RPackageAdvent2025
Test your package on multiple platforms before CRAN submission.
Resources: r-hub.github.io/rhub/
#rstats #RPackageAdvent2025
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
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
December 20, 2025 at 11:00 AM
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
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
5/ The Bottom Line: goodpractice is your package health checkup. Catches issues before they become problems. Run regularly, maintain quality.
December 19, 2025 at 11:01 AM
5/ The Bottom Line: goodpractice is your package health checkup. Catches issues before they become problems. Run regularly, maintain quality.
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
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
December 18, 2025 at 11:01 AM
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
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
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
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
December 17, 2025 at 11:02 AM
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
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
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
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
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
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
Day 15: Snapshot Testing with testthat
Test complex outputs that are hard to specify exactly.
Pro Tip: Review snapshot changes carefully - they capture everything, including whitespace and formatting.
#rstats #RPackageAdvent2025
Test complex outputs that are hard to specify exactly.
Pro Tip: Review snapshot changes carefully - they capture everything, including whitespace and formatting.
#rstats #RPackageAdvent2025
December 15, 2025 at 11:01 AM
Day 15: Snapshot Testing with testthat
Test complex outputs that are hard to specify exactly.
Pro Tip: Review snapshot changes carefully - they capture everything, including whitespace and formatting.
#rstats #RPackageAdvent2025
Test complex outputs that are hard to specify exactly.
Pro Tip: Review snapshot changes carefully - they capture everything, including whitespace and formatting.
#rstats #RPackageAdvent2025
Day 14: testthat 3rd Edition Features
Modern testing with the latest testthat features.
Setup:
usethis::use_testthat(3)
Pro Tip: Use test_that() with descriptive names that explain what should happen.
Resources: testthat.r-lib.org
#rstats #RPackageAdvent2025
Modern testing with the latest testthat features.
Setup:
usethis::use_testthat(3)
Pro Tip: Use test_that() with descriptive names that explain what should happen.
Resources: testthat.r-lib.org
#rstats #RPackageAdvent2025
December 14, 2025 at 11:01 AM
Day 14: testthat 3rd Edition Features
Modern testing with the latest testthat features.
Setup:
usethis::use_testthat(3)
Pro Tip: Use test_that() with descriptive names that explain what should happen.
Resources: testthat.r-lib.org
#rstats #RPackageAdvent2025
Modern testing with the latest testthat features.
Setup:
usethis::use_testthat(3)
Pro Tip: Use test_that() with descriptive names that explain what should happen.
Resources: testthat.r-lib.org
#rstats #RPackageAdvent2025
Day 13: covr - Test Coverage Reporting
Track how much of your code is tested.
use #nocov for code you don't want to cover (like basic R functions etc)
Pro Tip: Focus on testing critical functions thoroughly rather than chasing 100%.
Resources: covr.r-lib.org
#rstats #RPackageAdvent2025
Track how much of your code is tested.
use #nocov for code you don't want to cover (like basic R functions etc)
Pro Tip: Focus on testing critical functions thoroughly rather than chasing 100%.
Resources: covr.r-lib.org
#rstats #RPackageAdvent2025
December 13, 2025 at 11:01 AM
Day 13: covr - Test Coverage Reporting
Track how much of your code is tested.
use #nocov for code you don't want to cover (like basic R functions etc)
Pro Tip: Focus on testing critical functions thoroughly rather than chasing 100%.
Resources: covr.r-lib.org
#rstats #RPackageAdvent2025
Track how much of your code is tested.
use #nocov for code you don't want to cover (like basic R functions etc)
Pro Tip: Focus on testing critical functions thoroughly rather than chasing 100%.
Resources: covr.r-lib.org
#rstats #RPackageAdvent2025
Day 12: README.Rmd Automation
Create dynamic READMEs that stay up-to-date with your code.
Setup:
usethis::use_readme_rmd()
Include these sections:
• Installation instructions
• Basic usage example
• Lifecycle badges
• Build status badges
#rstats #RPackageAdvent2025
Create dynamic READMEs that stay up-to-date with your code.
Setup:
usethis::use_readme_rmd()
Include these sections:
• Installation instructions
• Basic usage example
• Lifecycle badges
• Build status badges
#rstats #RPackageAdvent2025
December 12, 2025 at 11:01 AM
Day 12: README.Rmd Automation
Create dynamic READMEs that stay up-to-date with your code.
Setup:
usethis::use_readme_rmd()
Include these sections:
• Installation instructions
• Basic usage example
• Lifecycle badges
• Build status badges
#rstats #RPackageAdvent2025
Create dynamic READMEs that stay up-to-date with your code.
Setup:
usethis::use_readme_rmd()
Include these sections:
• Installation instructions
• Basic usage example
• Lifecycle badges
• Build status badges
#rstats #RPackageAdvent2025
Day 11: NEWS.md and Semantic Versioning
Keep users informed about package changes.
Create NEWS.md:
usethis::use_news_md()
Pro Tip: Follow semantic versioning: MAJOR.MINOR.PATCH for breaking.feature.bugfix changes.
#rstats #RPackageAdvent2025
Keep users informed about package changes.
Create NEWS.md:
usethis::use_news_md()
Pro Tip: Follow semantic versioning: MAJOR.MINOR.PATCH for breaking.feature.bugfix changes.
#rstats #RPackageAdvent2025
December 11, 2025 at 11:01 AM
Day 11: NEWS.md and Semantic Versioning
Keep users informed about package changes.
Create NEWS.md:
usethis::use_news_md()
Pro Tip: Follow semantic versioning: MAJOR.MINOR.PATCH for breaking.feature.bugfix changes.
#rstats #RPackageAdvent2025
Keep users informed about package changes.
Create NEWS.md:
usethis::use_news_md()
Pro Tip: Follow semantic versioning: MAJOR.MINOR.PATCH for breaking.feature.bugfix changes.
#rstats #RPackageAdvent2025
Day 10: lifecycle - Managing Function Deprecation
Communicate changes to users gracefully with lifecycle badges.
Setup:
usethis::use_lifecycle()
Pro Tip: Use lifecycle stages: experimental → stable → superseded → deprecated.
Resources: lifecycle.r-lib.org
#rstats #RPackageAdvent2025
Communicate changes to users gracefully with lifecycle badges.
Setup:
usethis::use_lifecycle()
Pro Tip: Use lifecycle stages: experimental → stable → superseded → deprecated.
Resources: lifecycle.r-lib.org
#rstats #RPackageAdvent2025
December 10, 2025 at 11:01 AM
Day 10: lifecycle - Managing Function Deprecation
Communicate changes to users gracefully with lifecycle badges.
Setup:
usethis::use_lifecycle()
Pro Tip: Use lifecycle stages: experimental → stable → superseded → deprecated.
Resources: lifecycle.r-lib.org
#rstats #RPackageAdvent2025
Communicate changes to users gracefully with lifecycle badges.
Setup:
usethis::use_lifecycle()
Pro Tip: Use lifecycle stages: experimental → stable → superseded → deprecated.
Resources: lifecycle.r-lib.org
#rstats #RPackageAdvent2025
Day 8: pkgdown Customization and Deployment
Transform your package documentation into a polished website.
Advanced customization:
Auto-deployment:
usethis::use_github_action("pkgdown")
Pro Tip: Group functions logically in the reference section for better navigation.
#rstats #RPackageAdvent2025
Transform your package documentation into a polished website.
Advanced customization:
Auto-deployment:
usethis::use_github_action("pkgdown")
Pro Tip: Group functions logically in the reference section for better navigation.
#rstats #RPackageAdvent2025
December 8, 2025 at 11:01 AM
Day 8: pkgdown Customization and Deployment
Transform your package documentation into a polished website.
Advanced customization:
Auto-deployment:
usethis::use_github_action("pkgdown")
Pro Tip: Group functions logically in the reference section for better navigation.
#rstats #RPackageAdvent2025
Transform your package documentation into a polished website.
Advanced customization:
Auto-deployment:
usethis::use_github_action("pkgdown")
Pro Tip: Group functions logically in the reference section for better navigation.
#rstats #RPackageAdvent2025
Day 7: roxygen2 Advanced Tags and Cross-References 📝
Master documentation with advanced roxygen2 features, with markdown-style writing! 🎯
💡 Pro Tip: Use @inheritDotParams to inherit ... parameter documentation.
📚 Resources: roxygen2.r-lib.org
#rstats #roxygen2 #Documentation #RPackageAdvent2025
Master documentation with advanced roxygen2 features, with markdown-style writing! 🎯
💡 Pro Tip: Use @inheritDotParams to inherit ... parameter documentation.
📚 Resources: roxygen2.r-lib.org
#rstats #roxygen2 #Documentation #RPackageAdvent2025
![Cross-references: 🔗
#' @seealso [other_function()], [pkg::function()]
#' @family utility functions
#' @inheritParams parent_function](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:sgdhwgqd2ulz4zf5i4n4clnd/bafkreietcktkgkcty6f4zxio3f6pnt4t5b5h77pn3dhc6qhbbcl72mz3le@jpeg)
December 7, 2025 at 11:00 AM
Day 7: roxygen2 Advanced Tags and Cross-References 📝
Master documentation with advanced roxygen2 features, with markdown-style writing! 🎯
💡 Pro Tip: Use @inheritDotParams to inherit ... parameter documentation.
📚 Resources: roxygen2.r-lib.org
#rstats #roxygen2 #Documentation #RPackageAdvent2025
Master documentation with advanced roxygen2 features, with markdown-style writing! 🎯
💡 Pro Tip: Use @inheritDotParams to inherit ... parameter documentation.
📚 Resources: roxygen2.r-lib.org
#rstats #roxygen2 #Documentation #RPackageAdvent2025
Day 6/25: Adding dependencies to your #rstats package 🧵
#rstats #RPackageAdvent2025
The Manual DESCRIPTION Problem: You need to add dplyr to your package. Open DESCRIPTION, find Imports, type "dplyr," hope you didn't typo it, wonder if you need a version constraint, forget to sort alphabetically.
#rstats #RPackageAdvent2025
The Manual DESCRIPTION Problem: You need to add dplyr to your package. Open DESCRIPTION, find Imports, type "dplyr," hope you didn't typo it, wonder if you need a version constraint, forget to sort alphabetically.
December 6, 2025 at 10:45 AM
Day 6/25: Adding dependencies to your #rstats package 🧵
#rstats #RPackageAdvent2025
The Manual DESCRIPTION Problem: You need to add dplyr to your package. Open DESCRIPTION, find Imports, type "dplyr," hope you didn't typo it, wonder if you need a version constraint, forget to sort alphabetically.
#rstats #RPackageAdvent2025
The Manual DESCRIPTION Problem: You need to add dplyr to your package. Open DESCRIPTION, find Imports, type "dplyr," hope you didn't typo it, wonder if you need a version constraint, forget to sort alphabetically.