My IRC bouncer (BNC4FREE) has been down for one week. Time to go back running Irssi in a detached Tmux session on a local server.

Spatial sampling with R. Lot of pretty illustrations and good old base R code. #rstats

♪ Memory Tapes · Bicycle

Kopia is ridiculously fast and over-optimized. I don’t miss Arq or Borg. I have an hourly schedule for local snapshots, and a weekly sync to an external HD, which never failed me so far.

I successfully installed Forge and Controllable for the Minecraft (Java Edition) running on my laptop. Now I can use a PS5 controller to play instead of keyboard shortcuts. Okay, it must be 5 years since I last played, but I’m glad to find a game environment close to the PS4. Sadly, I can’t play my old PS4 maps on the Java edition, which means I need to create a new one.

♪ Marianne Faithfull · Crazy Love

♪ Lou Reed · Lisa Says

The highest upvotes I got on Cross Validated is for a quick reply where I mentioned the Gifi “nom de plume”, which I miss a lot. Enjoy your “unfinished” retirement, Mr./Dr. Jan de Leeuw, and happy foometrics (PDF)!

If Foo is a science then Foo often has both an area Foometrics and an area Mathematical Foo. Mathematical Foo applies mathematical modeling to the Foo subject area, while Foometrics develops and studies data analysis techniques for empirical data collected in Foo. Each of the social and behavioural sciences has a form of Foometrics, although they may not all use a name in this family. — de Leeuw, 2006

The thing I really appreciate under Ubuntu or OpenBSD compared to macOS is the package manager. So bad Apple decided to move away from the Un*x world. I miss the old good stuff that was lying around there. #apple #unix

Also, I deleted Apple Music on my iPhone. Thanks for the goodies. Back to listening to ripped CDs!

I recently came across some Racket code on Reddit that implements Fenwick trees, aka binary indexed trees (BIT). Fenwick’s article, which is not the original paper on that particular data structure, A New Data Structure for Cumulative Frequency Tables (PDF) explains all the details, but there’s also a nice tutorial, as well as some applications for competitive programming.