Data Science. TileDB. Open Source. Quant Research. R. C++. Debian. Linux. Adjunct Clinical Professor, University of Illinois. Lots of coffee. And some running.

Chicago, IL, USA
Joined March 2007
Dirk Eddelbuettel retweeted
TileDB is delighted to announce strategic investments from Lockheed Martin Ventures and NTT Docomo Ventures. We are tackling the hardest problems to advance the vision of a universal database. hubs.la/H0Yqd120 @lmnews @DOCOMOVentures
8
3
23
Dirk Eddelbuettel retweeted
Our model of excess deaths around the world allow fair comparisons. I found that adjusting for population, the death rate is now about eight times higher in America than in the rest of the rich world. economist.com/graphic-detail…
6
62
5
106
Try > example(ChickEgg, package="lmtest") which is about as good as it gets for a (literal) chicken-and-egg problem illustrating Granger causality reasoning.
1
3
See the tweet below -- it can work very well and eg ​I (very publically via cron) run #RStats code from 14 years ago (CRANberries) every hour and from 8 years ago (CRAN Repo Policy bot) daily.
"The biggest piece is minimizing your dependencies, and limiting them to ones that value backwards compatibility." While primarily about 'low-upkeep' software, this generalises to #rstats in #production, to #reproducibility and to good #science. jefftk.com/p/designing-low-u…
2
1
2
Replying to @tom_nuttall
Just saw the same thing at @derspiegel but attributed to Habeck and the Greens. Still smart either way :)
4
Dirk Eddelbuettel retweeted
Analogously to the win-builder, there's now an 'R MAC Builder' with "the same setup and available packages as the CRAN M1 build machine" mac.r-project.org/macbuilder… #RStats macOS M1
2
21
59
Word. Sent this to my daughters who are either already in grad school or thinking hard about going 😂 Might have to warn my undergrad students too.
This tweet is unavailable
1
10
We are looking for software engineers that would like to join us and build distraction-free, e-ink optimized applications for writing, reading, and thinking.
We are building an open-hardware and open-source e-ink laptop. We are looking for someone familiar with the Linux graphics stack, experience with C programming and GPGPU. Let me know if you are interested. DM's are open.
5
6
digest 0.6.28 on CRAN: Small Enhancements Compact hash representations of arbitrary R objects dirk.eddelbuettel.com/blog/2… #rstats
4
5
prrd 0.0.5 on CRAN: Incremental Mode Parallel Running [of] Reverse Depends dirk.eddelbuettel.com/blog/2… #rstats
2
7
The R Foundation has received a donation from the @IndeedEng FOSS Contributor Fund. Thank you very much for the award. opensource.indeedeng.io/FOSS…
6
35
Dirk Eddelbuettel retweeted
Introduction to Emacs Speaks Statistics, which provides an R interface for GNU Emacs ess-intro.github.io/ #rstats
6
1
17
Replying to @gdequeiroz
Point them to RStudio Cloud which, while no longer free for 'unlimited use', is still free for 'a few' hours, enough for you here, and only an easy login away. Similar tricks work for Google Collab. Maybe your employer has something on their cloud too.
2
8
A weekend tweet from an arcane thread about `sd()` and what-was-then: I dug up R 2.15.3 with little effort from binaries using @Docker and @Debian's snapshot archive to illustrate how things were 8 1/2 years ago. It's nice that we can do this to check. #rstats
Basically, yes. And warned of deprecation in 2.15.3. (@Docker used with @Debian oldoldstable along with the incomparable snapshot.debian.org made this easy-ish. No compilation needed.) #archeology #rstats
4
12
Basically, yes. And warned of deprecation in 2.15.3. (@Docker used with @Debian oldoldstable along with the incomparable snapshot.debian.org made this easy-ish. No compilation needed.) #archeology #rstats
1
5
Hah. That is so long ago that I even forgot it existed. Signed, old R user since 0.65 or so.
1
Replying to @alittlestats
Yup, rings a bell. Might be historical compatibility. There are add-on packages with column-wise variance or sd. Because this is a cludge -- but been-there-done-that: > library(palmerpenguins) > sapply(penguins, function(x) if (is.numeric(x)) sd(na.omit(x)) else NULL)
1
2
Replying to @alittlestats
Provide a MCVE or it doesn't count :) > sd(1:10) [1] 3.02765 > set.seed(123); sd(rnorm(10)) [1] 0.953784 > Is you 'x' a list or data.frame? Well yes in that case you need to loop over columns.
1