Ondrej Mottl 🌿💻📈🌍⏳
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ondrejmottl.bsky.social
Ondrej Mottl 🌿💻📈🌍⏳
@ondrejmottl.bsky.social
Assistant Professor at the Department of Botany🌿 , Charles University.
Head of Laboratory of Quantitative Ecology (bit.ly/CUNI_QuantitativeEcology)
with a main focus on #communityecology 🏞️, #palaeoecology 🕰️, and interest in #datascience 💻.
Pinned
1/🧵Introducing VegVault🌿🔒🏛️
A global database linking paleo- & neo-vegetation data with functional traits & abiotic drivers!
🚀A powerful tool for researchers exploring biodiversity dynamics across time & space

🔗 Website: bit.ly/VegVault
#VegVault #Ecology #Paleoecology #Vegetation #FunctionalTraits
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
Paleo folks: Please recommend researchers (incl yourselves) interested in phylogenetic reconstruction in deep time, molecular clocks (discord w/ fossil clocks), foundational/methodological issues in phylo/paleo-reconstruction & who'd be interested in hanging w/ historians & philosophers of science ⚒️
November 24, 2025 at 12:02 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
Calling all experts on #tropicalpeatlands! 📢Submit your abstracts to our session at #EGU26. meetingorganizer.copernicus.org/EGU26/sessio... Apply by 01.12.25 for travel support!- egu26.eu/authors/fina...
@nickgirkin.bsky.social
@egu.eu
@sciencecharles.bsky.social
November 24, 2025 at 11:22 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
I don't think this science communication resource gets enough love.

OpenMoji offers 4,000+ free, #opensource emojis (CC BY-SA 4.0), with categories for healthcare, climate, UI...

Challenge: find Greta Thunberg and a Viennese coffee house. ☕

🔗 openmoji.org #SciComm #Design
November 18, 2025 at 10:41 AM
🤯
The default prior for the intercept in both {rstanarm} and {brms} are very wide.

Counterintuitively - being on the logit scale, this is actually translates to a **strong** prior that p(y=1) is near 1 or near 0.

Always check your priors!

#rstats
November 18, 2025 at 5:41 PM
My reviews are generally structured very differently but I might give it a shot.
I recently discovered Conventional Comments (conventionalcomments.org) for providing a pseudo-standard set of labels for feedback and just tried it for an article review and it was really helpful to specify issues vs. thoughts vs. suggestions, etc. Hopefully it's helpful for the authors too!
November 18, 2025 at 4:38 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
Like math and plant community ecology?

I am recruiting one or two new Ph.D. students to work on theory and its integration with data in the areas of forest dynamics, species coexistence, or plant community ecology more generally.

Deadlines for the EEB and Plant Biology programs are Dec. 1.
Ecology, Evolution and Behavior
The Ecology, Evolution and Behavior graduate program at The University of Texas at Austin is top-10 ranked.
integrativebio.utexas.edu
November 17, 2025 at 8:37 PM
This looks cool! As not all co-authors are happy making GH PR, this might be a good solution. Has anyone actually used it?
November 18, 2025 at 4:19 AM
This is the talk I needed in my life!!!
The recording of my #rstats posit::conf talk ✨ practical {renv}✨ is available! 🎉

I created this talk for frustrated {renv} users 🫠 and potential {renv} users🤩

youtu.be/l01u7Ue9pIQ?...

Even if {renv} isn't on your radar, you may still find this talk interesting if you are curious about🤔...
Practical {renv} (Shannon Pileggi, The PCCTC) | posit::conf(2025)
YouTube video by Posit PBC
youtu.be
November 11, 2025 at 7:22 PM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
{renv} is the package you need that you never know you needed

For easy to get up and running and honestly makes your life exceptionally easy.

docs.posit.co/ide/user/ide...
renv – RStudio User Guide
docs.posit.co
November 6, 2025 at 12:16 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
October 8, 2025 at 10:35 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
I find there's a huge mismatch between the standard advice that people give about scientific conference talks, and how people actually give talks.

So I picked out the most important pieces of advice that are most often ignored. 🧪
The best scientific talk advice that gets ignored
Here are some prescriptions for a case of UCPS (Unengaging Conference Presentation Syndrome).
scienceforeveryone.science
October 28, 2025 at 9:24 PM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
Halloween logicals, still the best 10/31 venn
October 31, 2025 at 10:52 PM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
{targets} makes you feel bad when a job is done, because those computers are now being very lazy #rstats
November 1, 2025 at 4:41 AM
As always, super useful tool from @blasbenito.com!
Looking forward to using it!
On the other hand, the R package {collinear} (URL: blasbenito.github.io/collinear/) saw an increase in downloads after release 2.0, a version with no breaking changes.

Version 3.0 is coming soon, with a few significant improvements and some changes, so we'll see how things go after that.

#rstats
November 1, 2025 at 10:05 AM
Been thinking about switching to #Linux 🐧 (from #Windows). I use loads of MS tools — #VSCode, #GitHub — but there’s only so much you can do with Win11 customisation 😅
The recent hype around #Omarchy might be the final push!
Any #DataScience #Rstats folks tried it yet?

#rstats #RStats
October 31, 2025 at 7:28 PM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
new blog post:

Of course, someone has to write imperative code to build reproducible data science pipelines. It doesn’t have to be you.

brodrigues.co/posts/2025-1...
October 29, 2025 at 3:52 PM
How to do data visualisation right👇🌟🔥
Friday night early #TidyTuesday of British Literary Prizes.

Wanted it as a bookshelf, made it into a bookshelf 📚

Code: github.com/borstell/tid...

#R4DS #DataViz
October 25, 2025 at 5:03 PM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
The making of this week's #TidyTuesday chart recorded with {camcorder} in #RStats 📹
October 23, 2025 at 3:04 PM
This then massively enhanced with shortcuts for file navigation:
Ctrl+p to fuzzy search and open any file
Ctrl+tab to switch between tabs
Ctrl+alt+right to move tab to the right part of screen (split the window)
Ctrl+number to jump between tab groups (1/2 if you have splitted the window in 2)
One of my favorite recent Positron discoveries is that you can not only (1) pin tabs, but (2) put the pinned tabs on their own dedicated row (after enabling that setting), which is glorious for workspace tab management #rstats
October 16, 2025 at 4:07 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
The quarto-preprint @quarto.org extension (github.com/mvuorre/quar...) for PDF outputs with #typst now includes proper appendices for reproducible #quartopub #rstats manuscripts, improved two-column layouts (and themes, incl. full-width content), better reference formatting & improved documentation.
October 13, 2025 at 3:05 PM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
I'm just saying this is syntatically correct #rstats code
January 16, 2025 at 4:38 PM
R
{tidyverse}
%>%
<-
{palmerpenguins}
tidyr::pivot_longer()
dplyr::group_by()
Quarto
purrr::map()
dplyr::mutate()
VS Code!
R 🆚 Python
Base R 🆚 Tidyverse
%>% 🆚 |>
<- 🆚 =
T 🆚 TRUE
iris 🆚 penguins
gather 🆚 pivot_longer
group_by 🆚 .by
Quarto 🆚 RMarkdown
map 🆚 lapply
DT[, z := x + y] 🆚 mutate(df, z = x + y)
RStudio 🆚 Positron
#rstats 🆚 #databs
October 10, 2025 at 4:36 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
R 🆚 Python
Base R 🆚 Tidyverse
%>% 🆚 |>
<- 🆚 =
T 🆚 TRUE
iris 🆚 penguins
gather 🆚 pivot_longer
group_by 🆚 .by
Quarto 🆚 RMarkdown
map 🆚 lapply
DT[, z := x + y] 🆚 mutate(df, z = x + y)
RStudio 🆚 Positron
#rstats 🆚 #databs
October 9, 2025 at 8:14 PM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
Wondering if you can outsource your data viz work to ChatGPT? 📊

I tested out a few different generative AI tools, giving them prompts to visualise two different data sets. If you're interested in the results, you can read them here: nrennie.rbind.io/blog/gen-ai-...

#RStats #Python #DataViz #GenAI
Generative AI for Data Visualisation – Nicola Rennie
Can generative AI create good data visualisations? This blog post compares the performance of ChatGPT, Claude, Copilot, and Gemini when presented with a generic request to visualise a dataset.
nrennie.rbind.io
October 9, 2025 at 9:57 AM
Reposted by Ondrej Mottl 🌿💻📈🌍⏳
✨ Check out {cli} - an R package for beautiful command-line interfaces!

Use it to add headings, alerts, lists, progress bars & more, with built-in colors and themes. Perfect for making console output clear and stylish.

🔗 github.com/r-lib/cli

#rstats #RPackage #cli
GitHub - r-lib/cli: Tools for making beautiful & useful command line interfaces
Tools for making beautiful & useful command line interfaces - r-lib/cli
github.com
September 30, 2025 at 11:01 PM