Erik J. Ringen

Data Scientist (Applied Statistician) at the University of Zurich

PhD in Bio-Anth. Behavioral ecology, cultural evolution, statistics & causal inference.

[Erik J. Ringen @err_ring]

New blog: If you use observation-level random effects, your predictive checks are probably wrong. Here's how to do it the right way in both #brms and #PyMC

tl;dr: you need to sample new levels of the OLRE to avoid a false goodness-of-fit

https://t.co/sPD1wl8cnO

[Lyra, Esq., is NOT DAREDEVIL @PinkRangerLB]

Twin Peaks posting again

[Chelsea Parlett @ChelseaParlett]

It turns out you can’t teach a decades worth of stats experience/learning in a single semester

[Erik J. Ringen @err_ring]

It feels like whenever OLS comes up on this site, one camp is talking about model checking (residuals, predictive plots) and the other about standard errors. Both talk past each other. Onlooks become more confused.

[Erik J. Ringen @err_ring]

@ed_kroc poisson with observation-level random effects that follow t-dist rather than normal

[Erik J. Ringen @err_ring]

@just_cameron bottomless_pit

[Erik J. Ringen @err_ring]

Has anyone had their @github account flagged before (all activity suddenly hidden from public)? I've had an open ticket with them for reinstatement for over a month with no response...

[Erik J. Ringen @err_ring]

@camjpatrick yes, priors are also research misconduct. informative prior = simulation of work that has no been conducted. generic regularizing prior = hiding work that has been conducted.

[Erik J. Ringen @err_ring]

@PhDemetri @camjpatrick R + targets -> quarto is the way

[Luisa Maria Rivera @guichitarivera]

Mi gente! I'm thrilled to share the first preprint from the Period Biology Study I've started at Dartmouth! Led by amazing PhD student Irma Vlasac, we lay the groundwork for validating self-collected menstrual samples for DNA methylation research.

https://t.co/3Ro0l28mHC

[Erik J. Ringen @err_ring]

PSA: this no longer works as of cmdstan 2.35.0. A new solution, courtesy of Andrew Johnson:

https://t.co/CrOOrN5c4O

[Erik J. Ringen @err_ring]

Nice solution from @babeheim:

extract_samples <- function(cmdstanrfit) {
cmdstanrfit$output_files() |>
rstan::read_stan_csv() |>
rethinking::extract.samples()
}

[Erik J. Ringen @err_ring]

@DStibbardHawkes it me

[Erik J. Ringen @err_ring]

Excited to attend for the first time this year!

[Richard McElreath 🐈‍⬛ @rlmcelreath]

StanCon is still happening in September. Have you considered the probabilistic dividends? Link in quoted. The keynote speakers will cover everything from disease to drugs to sharks. Bayesian Sharks (doo-doo, doo-doo, doo-doo)

[sheina lew-levy @sheinalew]

I am advertising for a postdoc! You get to do cross-cultural research from the comfort of an office, write a lot of papers, and hang out with me! https://t.co/Gk1AgJjtBg

[Erik J. Ringen @err_ring]

@SolomonKurz It is okay. A researcher's ability to intervene is contextual. Ethics, resources, and technology determine what one can intervene on in a study. The limitations of researchers has nothing to do with the existence of causal effects.

[Tanja Stadler @TanjaStadler_CH]

We are hiring! Come join us for a PhD in Computational Language Evolution @ETH in Basel @ETH_BSSE and the National Research Program on Evolving Language @NCCR_Language. We are looking forward to receiving your application https://t.co/judmBVLp5k

[Erik J. Ringen @err_ring]

@PhDemetri I only teach stats for MA/PhD+ researchers, maybe some replies misunderstood your audience (undergrads?)

[Erik J. Ringen @err_ring]

More evidence of the prior recession. In the old days a high school graduate could afford a fat-tailed, Cauchy(0, 5) prior on a fixed effect. Now they struggle to afford rent on a N(0, 0.5). @rlmcelreath

[Erik J. Ringen @err_ring]

Teaching statistics to grad students this semester. Reading Freedman's anti-regression piece "Statistical Models and Shoe Leather" (paper brought to my attention by @ed_hagen) next week to calibrate expectations. Tag urself on his ordinal scale of pessimism.