This December, I'll be posting an article & video each day until Christmas in the Advent of Compiler Optimisations! #AoCO2025 Each day we'll explore a fun optimisation in C or C++; some low-level, x86 or ARM-specific, some high-level. Hope you'll join me! YT: youtube.com/mattgodbolt Blog: xania.org

Jeffrey Epstein to Lawrence Summers (both of whom are very bad people): “i have met some very bad people , none as bad as trump. not one decent cell in his body. so yes- dangerous”

For folks (and journalists) who want to search the Oversight Committee email texts, I made a database for searching the 20k text files: splendorous-chaja-f79791.netlify.app

digest 0.6.38 on CRAN: Several Updates Compact hash representations of arbitrary R objects dirk.eddelbuettel.com/blog/2025/11... #rstats With special thanks to Carl Pearson, Bill Denney, Thierry Onkelinx, and Sergey Fedorov for contributions to this release.

duckdb-mlpack 0.0.4: Added random forest and logistic regression Bringing mlpack machine learning to duckdb SQL dirk.eddelbuettel.com/blog/2025/11... Adds random forest and logistic regression, reworks interface, adds new state variable for verbosity, expands documentation and adds unit tests

It is really hard being @TheOnion these days.

#r2u for #Rstats now also includes #BioConductor on arm64 and not only on standard amd64. Following the upgrade to #BioConductor 3.22 we added this hardware platform. `zlibbioc` was removed so a few packages we have for amd64 could not be built. Should I backfill it (and them)?

The Asahi Linux folks need to get their port working on this.

RcppCNPy 0.2.14 on CRAN: Minor Maintenance Read/write NumPy data from R dirk.eddelbuettel.com/blog/2025/11... #rstats #rcpp

duckdb-mlpack 0.0.3: macOS binaries, unit tests, more outputs Bringing mlpack machine learning to duckdb SQL dirk.eddelbuettel.com/blog/2025/11... #duckdb #mlpack

This is a surprisingly poor article. Volatily can modeled, is used as a proxy for risk (the "unknown"), but is still (by construction and definition) a second moment, i.e. a model of _variability_ which is to say the _error term_. Which is another way of saying you cannot forecast it. 1 of 2

#r2u now contains BioConductor 3.22 released yesterday for Ubuntu 24.04 and 22.04 (for the 500-some packages we cover, details at the site). #Rstats 4.5.2 has been built, we will update the containers in a few days as well. #r2u. Fast. Easy. Reliable. Pick All Three. eddelbuettel.github.io/r2u

#r2u is back with 162 (jammy) and 202 (noble, for arm64 and amd64) package "kittens" (well: .deb files) catching up for time lost since the last update Friday. Big thanks to the CRAN admins and the @posit.co folks for unplugging their piping, and to @glin.github.io for the heads-up. #rstats

The kids are alright.

I h a concurrency t e

Just checked the 'R (Programming Language)' entry on the new so-called 'woke' wikipedia rival (no, I won't link) ... and it appears to be a wholesale copy of the original wikipedia article. Instead of turtles all the way down it's just only grifters all the way down. #rstats

No p3m.dev updates, so no #r2u updates as we follow its pulse. Archive sync issue between CRAN and posit said to be at the root of this. Lots of sad puppies to go around. Whoever is looking into it (@posit.co is not listing a contact person, maybe they should): thank you. We will be back. #rstats

R^4 post #054: Faster r-ci Contimuous Integration via r2u Container Accelerating Continous Integration at GitHub Actions dirk.eddelbuettel.com/blog/2025/10... #rstats

Fly on, Jack DeJohnette. 💐🕊️🤲🏾 photo (by me) backstage at Jazz @ Lincoln Center, Nov 2, 2019

Wow, looks fantastic! My aunt is from Lac St-Jean (official home of the Tourtière), and she once taught me how to make it. But I never had the guts to try it by myself.

It's fall, so what one does is making a _tortière_ (or _tourtière_, we support both spellings). /cc @vincentab.bsky.social

Congressman @seancasten.bsky.social : Same plea as last week! Please ensure the work on the Tri-State Highway underpass at the Salt Creek Trail is done one day. The trail has been blocked here for years which is really rather sad.

duckdb-mlpack 0.0.2: mlpack is now a duckdb community extension Bringing mlpack machine learning to duckdb SQL dirk.eddelbuettel.com/blog/2025/10...

Here is the ad from Ontario that made Little Donnie Trump wet his pants. www.cbc.ca/player/play/...

🚨 New CRAN Task View: Anomaly Detection #rstats #anomalydetection By Priyanga Dilini Talagala, Rob J. Hyndman @robjhyndman.com, Gaetano Romano URL: cran.r-project.org/view=Anomaly...

This is the most delightfully Canadian thing I've ever seen

Ah the little joys in life.

Congressman @seancasten.bsky.social : the world clearly has bigger issues but if you could put a word in to have the Salt Creek Greenway trail repair at the Tri-State Highway actually be done and, gosh, finished one day then your 6th and my 7th district would be so much better connected.

RcppArmadillo 15.2.0-0 on GitHub: New Upstream, Simpler OpenMP R bindings to powerful and expressive C++ matrix library dirk.eddelbuettel.com/blog/2025/10... #rcpp #rstats GitHub-only release skipping CRAN to slow the update cadence per CRAN Policy

Before coffee: I hate everybody After coffee: I feel good about hating everybody

Nine months down. Leaves 1188 days. One day at a time.

they are so close to understanding the entire point of trade

#NoKings Oak Park, IL. Most of the action down on Lake St but the view from Scoville Park offers some perspective. Felt bigger than in June, but a little hard to tell.

Do you know what a group of frogs is called? AN ARMY

ML quacks: Combining duckdb and mlpack dirk.eddelbuettel.com/blog/2025/10... A 'minimally viable product / demo' of extending @duckdb.org with #mlpack

We (me + @alexip718.com) will be running a crowdsourced total crowd estimator for this weekend's No Kings protests, very similar to the one we did for June (www.gelliottmorris.com/p/no-kings-d...). Look for a spreadsheet or entry form from us by Saturday, and a preliminary estimate Sunday morning

#rstats 4.5.2 "[Not] Part in a Rumble" scheduled for October 31. Full schedule on developer.r-project.org

Here is an example of why the #rstats `qlcal` package (updated earlier today, see below) is useful as it contains six _business / exchange_ calendars thay can answer the question "was yesterday (i.e. Columbus Day) a holiday in the US" in an affirmative "not for stock or energy markets".

qlcal 0.0.17 on CRAN: Regular Update QuantLib Business / Exchange Calendaring for R dirk.eddelbuettel.com/blog/2025/10... #rstats #rcpp

RcppArmadillo 15 CRAN Transition: Offering Office Hours Offering office hours to help in updating #rstats CRAN packages to RcppArmadillo 15.0.2 given CRAN 'Deadlines' for a number of the reverse-dependency packages. Details and booking link at blog post. dirk.eddelbuettel.com/blog/2025/10...

Short video of @juliaedd.bsky.social cruising the last mile of the #ChicagoMarathon and greeting her mom and sis. I was on the other side as I tried to cycle the outside of the course in support. Fabulous day, fabulous race, fabulous achievement. photos.app.goo.gl/KF4Uqsk9kQ8x...

RcppSpdlog 0.0.23 on CRAN: New Upstream Modern C++ logging for R extension packages dirk.eddelbuettel.com/blog/2025/10... #rcpp #rstats

Now that he missed out on the Peace Nobel, he must be a sure bet for the Econ Nobel, right?

RcppArmadillo 15 CRAN Transition: Offering Office Hours Offering office hours to help in updating #rstats CRAN packages to RcppArmadillo 15.0.2 given CRAN 'Deadlines' for a number of the reverse-dependency packages. Details and booking link at blog post. dirk.eddelbuettel.com/blog/2025/10...

By me this week - the happiest thing I've got to report of late, with a glorious trip over the summer to Montreal "Forget EVs. Cycling is revolutionising transport." www.economist.com/internationa...

xptr 1.2.0 on CRAN: New(ly Adopted) Package! Manipulating External Pointers with Ease from R dirk.eddelbuettel.com/blog/2025/10... #rstats

RPushbullet 0.3.5: Mostly Maintenance Easy multi-device messaging from R dirk.eddelbuettel.com/blog/2025/10... #rstats