Luis Eduardo San Martin
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luiseee.bsky.social
Luis Eduardo San Martin
@luiseee.bsky.social
79 followers 310 following 1 posts
Data guy working in social science reproducibility and (some) data science for international development. Also following Peruvian politics and Pokemon
Posts Replies Media Videos
Reposted by Luis Eduardo San Martin
josephpolitano.bsky.social
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 graph of year on year ridership growth in the 10 largest US transit agencies
December 5, 2025 at 10:26 PM
Reposted by Luis Eduardo San Martin
briannosek.bsky.social
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...
December 3, 2025 at 6:51 PM
Reposted by Luis Eduardo San Martin
cajondesastre.bsky.social
Como para no amargarme el domingo con la realidad nacional

youtu.be/PalUsRqE5ew?...
Mi muñeca me habló - Julieta Venegas - 31 minutos: Calurosa Navidad
YouTube video by 31 minutos
youtu.be
November 23, 2025 at 4:34 PM
Reposted by Luis Eduardo San Martin
cghlewis.bsky.social
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. 🫶
November 24, 2025 at 2:09 PM
Reposted by Luis Eduardo San Martin
retrotechdreams.bsky.social
Illegal operation
November 9, 2025 at 10:26 PM
Reposted by Luis Eduardo San Martin
henrikbengtsson.bsky.social
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...
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...
www.jottr.org
November 5, 2025 at 11:55 PM
Reposted by Luis Eduardo San Martin
gtvtavo.bsky.social
Juan Acevedo (el cuy)
October 11, 2025 at 4:33 AM
Reposted by Luis Eduardo San Martin
subetealanutria.bsky.social
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
evocid.bsky.social Evocid @evocid.bsky.social · Oct 4
Dos animales se encuentran en el bosque:
– Oye, nunca había visto a nadie como tú. ¿Qué eres?
– Un perro lobo, mi padre era un perro y mi madre una loba, así que aquí estoy yo. ¿Y tú?
– Yo un oso hormiguero.
October 4, 2025 at 9:02 AM
Reposted by Luis Eduardo San Martin
welpita.bsky.social
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
September 25, 2025 at 2:06 PM
Reposted by Luis Eduardo San Martin
letterboxd.social
It’s their day today 🎶🕺🏻
September 21, 2025 at 11:13 AM
Reposted by Luis Eduardo San Martin
thomasp85.com
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
ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
www.tidyverse.org
September 11, 2025 at 11:20 AM
Reposted by Luis Eduardo San Martin
pokemongems.bsky.social
this is a mood
Screenshot of Bulbasaur looking disappointed in new pokemon snap Screenshot of Bulbasaur looking disappointed in new pokemon snap
September 7, 2025 at 12:59 PM
Reposted by Luis Eduardo San Martin
elviscera.bsky.social
Justo me preguntaba si El Rayo McQueen compraría seguro de vida o vehicular.
mariapau23.bsky.social LaMary @mariapau23.bsky.social · Aug 30
Tipo así pero tipo durmiendo porque estaba estacionado
August 31, 2025 at 2:41 AM
Reposted by Luis Eduardo San Martin
michaelhobbes.bsky.social
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
Average nitrogen dioxide concentration in Paris has fallen significantly Her proposals have faced pushback — from right-leaning politicians, a car owners’ association and suburban commuters, who say that targeting cars makes their lives more difficult. But last month, Parisians voted in a referendum to turn an additional 500 streets over to pedestrians. A year earlier, Paris had moved to sharply increase parking fees for SUVs, forcing drivers to pay three times more than they would for smaller cars. The city has also turned a bank of the Seine from a busy artery into a pedestrian zone and banned most car traffic from the shopping boulevard of Rue de Rivoli. Carlos Moreno, a professor at Paris 1 Panthéon-Sorbonne University and a former adviser to the city, said the French capital has developed “an urban policy based on well-being.”
August 30, 2025 at 12:43 AM
Reposted by Luis Eduardo San Martin
jugoperu.bsky.social
🤯 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
August 21, 2025 at 12:00 PM
Reposted by Luis Eduardo San Martin
ourworldindata.org
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.
August 20, 2025 at 4:30 PM
Reposted by Luis Eduardo San Martin
realrppc.bsky.social
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...
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 ...
tramacritica.pe
August 4, 2025 at 4:34 PM
Reposted by Luis Eduardo San Martin
tolkienwonder.bsky.social
Tolkien’s drawing of The Lonely Mountain.
July 27, 2025 at 6:03 PM
Reposted by Luis Eduardo San Martin
malte.the100.ci
May 17, 2025 at 6:01 PM
Reposted by Luis Eduardo San Martin
xkcd.com
Replication Crisis

xkcd.com/3117/
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
July 21, 2025 at 11:54 PM
Reposted by Luis Eduardo San Martin
faculti.bsky.social
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
July 21, 2025 at 2:06 PM
Reposted by Luis Eduardo San Martin
jontreadway.bsky.social
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.
July 3, 2025 at 11:05 AM
Reposted by Luis Eduardo San Martin
j-pal.bsky.social
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
June 17, 2025 at 5:20 PM
Reposted by Luis Eduardo San Martin
pokemongems.bsky.social
this is so cool
Picture of a calculator showing a battle screen in the style of a pokemon gameboy game
May 21, 2025 at 9:24 PM