Måns Thulin
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mansthulin.bsky.social
Måns Thulin
@mansthulin.bsky.social
190 followers 93 following 120 posts
I work in statistics and AI. Consultant, teacher, researcher. #Rstats user.
Book: https://modernstatisticswithr.com
Homepage: https://mansthulin.se
Co-founder of https://aireview.se
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mansthulin.bsky.social
Måns Thulin @mansthulin.bsky.social · Nov 19
Looking for a book that covers both statistics and R programming? Check out my book Modern Statistics with R! Coding, visualisation, regression, ML & more.

📖 Read it for free: www.modernstatisticswithr.com
📚 Get printed copies: tinyurl.com/mswrbook

#Rstats #statistics #datascience #machinelearning
Modern Statistics with R - the author holding the book
Reposted by Måns Thulin
clauswilke.com
We need to have a conversation about random seeds. Don't use 42.
blog.genesmindsmachines.com/p/if-your-ra...
If your random seed is 42 I will come to your office and set your computer on fire🔥
Figuratively. More likely you'll get a stern talking to.
blog.genesmindsmachines.com
October 22, 2025 at 12:49 PM
mansthulin.bsky.social
Chernoff faces for penguins. 🐧 This made my day.
datavisfriendly.bsky.social Michael Friendly @datavisfriendly.bsky.social · Oct 12
#rstats #dataviz
A "line-up" test has been proposed as a human significance test: Can an observer spot a difference that rejects a null hypothesis?

Here's glyphs for 20 penguins, representing the main variables with visual features.

There are THREE multivariate outliers here. CAN YOU FIND THEM?
October 13, 2025 at 11:10 AM
mansthulin.bsky.social
A short tutorial on how to create gt cross-tables in one line of code using the #Rstats package ivo.table:
mansthulin.se/posts/ivotab...
October 9, 2025 at 9:17 AM
mansthulin.bsky.social
Happy to hear this. Positron certainly has its merits, but I think RStudio is a much better choice for the quiet majority who use #Rstats for statistical analyses rather than software engineering.
libbyheeren.bsky.social Libby Heeren @libbyheeren.bsky.social · Oct 8
Is #Positron going to replace #RStudio? 😱 (This is the worry I keep hearing lately 👀)

Posit Software Architect @jmcphers.bsky.social says, "there are certainly no plans to get rid of RStudio."

Watch the full #DSHangout video with Jonathan here: www.youtube.com/watch?v=1sROVZ83FNg

#rstats #databs
October 9, 2025 at 6:28 AM
mansthulin.bsky.social
This is a great update! I really like how colour palettes are now part of themes and the ink and paper feature in themes.
thomasp85.com Thomas Lin Pedersen @thomasp85.com · Sep 11
I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN.

It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package.

Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats
ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
www.tidyverse.org
September 11, 2025 at 11:50 AM
Reposted by Måns Thulin
vincentab.bsky.social
{tinytable} 0.13.0 for #RStats can now draw interactive tables with sorting, filtering & pages!

And the 📦 is still an ultra-simple, powerful, and 0-dep way to create beautiful tables in basically any format: tex, typ, docx, pdf, png, md, etc

Gallery & Docs: vincentarelbundock.github.io/tinytable/
August 19, 2025 at 9:24 PM
Reposted by Måns Thulin
matloff.bsky.social
#rstats #statistics

I've released my new open source book, "Powered by Linear Algebra: the role of matrices and vector space in data science," at matloff.github.io/WackyLinearA....

Turns the classic LA course on its head! Still proves the theorems, but with a deep emphasis on applications.
matloff.github.io
August 15, 2025 at 4:53 PM
Reposted by Måns Thulin
jonathankitt.bsky.social
Wow ... I'd never come across this use of with(), which allows combining the pipe and computing a correlation coefficient. Thanks to @mansthulin.bsky.social for explaining this in his fantastic book www.modernstatisticswithr.com!
#Rstats #code #neverknew
July 22, 2025 at 12:22 PM
mansthulin.bsky.social
I really enjoyed attending and speaking at R/Medicine this year! I learned a lot. Huge thanks to the organisers! My talk "Bootstrap inference made easy" is now available online: www.youtube.com/watch?v=EeAt...

#Rstats #Statsky
Bootstrap inference made easy: p-values and confidence intervals in one line of code
YouTube video by R Consortium
www.youtube.com
July 2, 2025 at 6:47 AM
Reposted by Måns Thulin
pdalgd.bsky.social
For the #rstats nerds: 405 is "Method not allowed". That is why R 4.0.5 was nicknamed "Shake and Throw", due to this piece of dubious pedagogy:

www.gocomics.com/peanuts/1978...
June 3, 2025 at 9:36 AM
Reposted by Måns Thulin
zx8754.bsky.social
#rstats base ?`$`
library(dplyr) library(purrr) library(bench) set.seed(42) create_df <- function(rows, cols) { out <- replicate(cols, runif(rows, 1, 100), simplify = FALSE) out <- setNames(out, rep_len(letters, cols)) as.data.frame(out) } results <- press( rows = c(1000, 10000, 100000), cols = c(100, 1000, 10000), { d <- create_df(rows, cols) mark( d$f, d %>% .$f, d %>% pull(f), d %>% pluck("f"), min_iterations = 100 ) } ) ggplot2::autoplot(results) bench::mark output plot
May 29, 2025 at 10:58 AM
mansthulin.bsky.social
This seems like an awfully high RAM usage for a new #Rstats session in RStudio. 🤔 Anyone seen this before?
Screenshot of RStudio, showing that the environment is empty but that 17.12 GiB of RAM is being used.
May 26, 2025 at 1:44 PM
mansthulin.bsky.social
The most common question I get when teaching ggplot2: "Can we change the background colour?"
Yes, we can - and much more. Here's how to create your own ggplot2 themes:
🔗 mansthulin.se/posts/ggplot...

#Rstats #datasky
Creating a custom ggplot2 theme – Måns Thulin
mansthulin.se
May 21, 2025 at 12:06 PM
mansthulin.bsky.social
The new release of RStudio prints errors, warnings and messages in different colours. That's a great improvement! I teach introductory #Rstats a lot, and students *always* think messages are errors. Hopefully this will help.
May 9, 2025 at 6:53 AM
Reposted by Måns Thulin
nrennie.bsky.social
For the prompt of "Extraterrestrial" on Day29 of the #30DayChartChallenge, I decided to make a chart designed in the style of an extraterrestrial who has never heard of good data visualisation principles! 📊

How many chart crimes can you spot? 🕵️‍♂️

#DataViz #RStats #ggplot2 #Day29
A deliberately chaotic and cluttered chart mocking bad data visualisation practices, featuring overlapping symbols, unreadable labels, clashing colours, and dual y-axes. The design satirises poor visual clarity and overcomplication.
April 29, 2025 at 8:05 AM
mansthulin.bsky.social
I created the {boot.pval} #Rstats 📦 aiming to make it easier to run bootstrap tests in R. Here's an example showing how you can use it to implement a correlation test using the bootstrap:

mansthulin.se/posts/custom...
Running bootstrap tests using {boot.pval} – Måns Thulin
mansthulin.se
April 16, 2025 at 1:49 PM
Reposted by Måns Thulin
vincentab.bsky.social
📚😅🎉

Yay!! I just submitted the complete manuscript of my upcoming book to the publisher!

Learn to easily and clearly interpret (almost) any stats model w/ R or Python. Simple ideas, consistent workflow, powerful tools, detailed case studies.

Read it for free @ marginaleffects.com

#RStats #PyData
Model to Meaning: How to interpret statistical models with marginaleffects for R and Python
April 10, 2025 at 7:06 PM
mansthulin.bsky.social
A bit of a treasure trove this!
April 9, 2025 at 5:18 PM
mansthulin.bsky.social
Base R can do what filter(), select(), and mutate() do — no tidyverse needed.
Check out some side-by-side examples in my latest blog post:
🧑‍💻 mansthulin.se/posts/baseti...

#Rstats
airquality |> transform(TempC = (Temp-32)/1.8, Month = month.name[Month]) |> aggregate(TempC ~ Month, mean)
April 9, 2025 at 2:20 PM
Reposted by Måns Thulin
visnut.bsky.social
Somewhere in Berlin, fitting in with the atmosphere, there is now a little R hexsticker graffiti #rstats #DAGStat_2025
March 26, 2025 at 12:04 PM
Reposted by Måns Thulin
solomonkurz.bsky.social
Who has an academic website they’re proud of?

I’m especially interested in websites by grad students, and in websites built with Quarto. I’ll be offering a local workshop on building a website with Quarto, and I’m keen to give my audience examples. #rstats
March 19, 2025 at 2:27 PM
mansthulin.bsky.social
This seems pretty useful! Any recommendations for LLMs than run locally that I can use when I try it out? (I have a GeForce RTX 4080 GPU with 16 GB RAM and 9728 CUDA cores) #Rstats
posit.co Posit @posit.co · Mar 17
Introducing gander, the AI-powered coding assistant that can describe objects in your #RStats environment!

gander provides detailed data descriptions directly to LLMs for more accurate coding assistance.

Explore the motivation and see an example in @simonpcouch.com's post: posit.co/blog/introdu...
The hex sticker for the gander package: a cartoonish goose swims on a green background with a blue 'reflection' below it. The Posit logo is in the corner.
March 17, 2025 at 2:37 PM
mansthulin.bsky.social
Interpreting residual plots can be tricky - how strong must patterns be to indicate model assumption violations? The latest #Rstats 📦 nullabor update makes this easier with lineup plots! 🔍

📈 Learn more: mansthulin.se/posts/nullab...
March 5, 2025 at 10:09 AM