Luis Eduardo San Martin

Leonardo DiCaprio has stopped using Wikipedia.

Center for Effective Global Action Submission Manager

We're excited to share the application for the next Research Transparency and Reproducibility Training (RT2)! Join us May 19 - 21, 2026 in Berkeley for hands-on training in open science tools and methods.

Apply by Feb 8: cega.submittable.com/submit/34383...

A graph of year on year ridership growth in the 10 largest US transit agencies

Another month of US transit data is just in, & DC's WMATA remains the fastest-growing major US transit agency, with ridership up 10% compared to last year!

King County Metro (Seattle, +7%) & SEPTA (Philly, +5.3%) have performed well, while LA Metro & NJTransit have lost riders🧵

A short preprint describing our adoption of more consistent and precise use of terminology related to reproducibility, robustness, replicability, repeatability, and credibility.

osf.io/preprints/me...

YouTube video by 31 minutos Mi muñeca me habló - Julieta Venegas - 31 minutos: Calurosa Navidad

Como para no amargarme el domingo con la realidad nacional

youtu.be/PalUsRqE5ew?...

If you want your work to be reproducible, you have to remember that others don't have the insider knowledge you have. You have to be explicit.

This morning I was able to recreate a file made by someone else because they explicitly documented their definitions, calculations, and their assumptions. 🫶

Illegal operation

Please Avoid detectCores() in your R Packages The detectCores() function of the parallel package is probably one of the most used functions when it comes to setting the number of parallel workers to use in R. In this blog post, I’ll try to explai...

The detectCores() apocalypse is creeping up on us 👻🐛

As more people are getting access to 128+ CPU cores, code spinning up parallel cluster with detectCores() workers fails - not enough #RStats connections available

Friends, do *not* default to detectCores(), bc www.jottr.org/2022/12/05/a...

Juan Acevedo (el cuy)

Mi padre es un gran fan de este chiste y finales alternativos al del "oso hormiguero" como

pez globo
serpiente cascabel
o (mi favorito) bacaladilla

Meter una mujer más en al foto -- Dina Boluarte-- aunque no tenga aval popular, pesen sobre ella acusaciones serias de corrupción y no haya aportado nada ni a la democracia ni a la causa de las mujeres sencillamente no tiene ningún sentido. ONU mujerse, urge una rectificación, @unwomen.bsky.social

It’s their day today 🎶🕺🏻

🙋🏽‍♂️

ggplot2 4.0.0 A new major version of ggplot2 has been released on CRAN. Find out what is new here.

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

Screenshot of Bulbasaur looking disappointed in new pokemon snap

Screenshot of Bulbasaur looking disappointed in new pokemon snap

this is a mood

Justo me preguntaba si El Rayo McQueen compraría seguro de vida o vehicular.

On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable

🤯 Conferencias sobre indigeneidad… ¿sin voces indígenas?🤔 Cuando los espacios “inclusivos” parecen cualquier cosa menos diversos. No te pierdas el Jugo de @ameriqo.bsky.social.

🧃Clic aquí: tinyurl.com/mr2npar7

Gold export data suggests that Peru, one of the world’s largest producers, mines nearly as much informally as it does formally—

According to official mining output records, Peru mined about 90 tonnes of gold in 2023, far ahead of any other South American country.

Creer para ver: a propósito de "Los incas hispanos" Hace pocos días, asistí a una función de teatro para niños. En una de las escenas clave de esta conocida obra, el estrafalario protagonista, ataviado con un bastón y un sombrero de copa alta, le pide ...

Qué gusto me ha dado leer esta crítica contra un libro del "historiador" hispanista peruano más difundido. Pura destrucción.

Hace tiempo, se quiere difundir el discurso de que la colonización fue un proceso de paz, amor y salvación. Toca hacerles el pare.

tramacritica.pe/critica/2025...

Tolkien’s drawing of The Lonely Mountain.

4-panel comic. (1) [Person 1 with ponytail flanked by person with short hair and another person speaking into microphone at podium] PERSON 1: In the early 2010s, researchers found that many major scientific results couldn’t be reproduced. (2) PERSON 1: Over a decade into the replication crisis, we wanted to see if today’s studies have become more robust. (3) PERSON 1: Unfortunately, our replication analysis has found exactly the same problems that those 2010s researchers did. (4) [newspaper with image of speakers from previous panels] Headline: Replication Crisis Solved

Replication Crisis

xkcd.com/3117/

How does unreliable urban transport disproportionately limit women’s access to higher education—and can infrastructure fixes close the gap? @falbav.bsky.social , @wakeforest.bsky.social , discusses: faculti.net/transport-ba...
#economics

Here are some swiftly assembled thoughts on #Metascience2025. Congratulations to the organisers. It was an excellent, full and balanced conference, bringing together many disparate strands. They threaded a complex needle really well.

How might irrigation affect farmers’ profits?
Maria Jones, Florence Kondylis, John Loeser, and J-PAL affiliate Jeremy Magruder explore the impacts of irrigation access in Rwanda: buff.ly/WbnmXtd

Picture of a calculator showing a battle screen in the style of a pokemon gameboy game

this is so cool

Screenshot of Pokémon Super Mystert Dungeon of a Totodile telling an Ampharos “Praise me a bit more! I did a really good job!”

praise him!

Screenshot of the linked Quarto website, with input checkboxes to change different conditions for a regression model that predicts economic performance based on US political party, with a reported p-value

I’ve long used FiveThirtyEight’s interactive “Hack Your Way To Scientific Glory” to illustrate the idea of p-hacking when I teach statistics. But ABC/Disney killed the site earlier this month :(

So I made my own with #rstats and Observable and #QuartoPub ! stats.andrewheiss.com/hack-your-way/