Juan F. Tellez
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causality (2)
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Blog

Year in Content

The year in content: 2025
Here’s all the content I consumed in 2025. The music data comes from Apple Music, the books from Goodreads, and the movies from Letterboxd.
Juan Tellez
Dec 31, 2025

The year in content: 2024
Here’s all the content I consumed this year. The music data comes from Apple Music, the books from Goodreads, and the movies from Letterboxd.
Juan Tellez
Dec 31, 2023

The year in content: 2023
Here’s all the content I consumed in 2023. The music data comes from Apple Music, the books from Goodreads, and the movies from Letterboxd.
Juan Tellez
Dec 31, 2022
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Posts

 

Places I’ve been

R
travel
Here’s a list of places I’ve traveled to that I’ll hopefully keep updating. I’m probably missing a bunch of trips to Colombia but haven’t kept close tally.
Feb 21, 2026
Juan Tellez

Multicollinearity is a reality problem

R
causality
In grad school I was introduced to the problem of “multicollinearity”. This is the idea that if your explanatory variables are “too” correlated this will create issues with…
Feb 21, 2026
Juan Tellez

The juanr package

Some datasets for teaching and poking around
R
data
teaching
I maintain an R package called juanr that I use for teaching. It’s a grab-bag of 30+ datasets that I’ve collected over the years from published research, government sources…
Feb 20, 2026
Juan Tellez

What do controls do?

R
causality
When I first learned about regression I found the use of controls mysterious. The “why” was clear: we have a situation where we want to estimate the effect of \(X\) on \(Y\)…
Jan 1, 2026
Juan Tellez

Working with PRIO-GRID data

Walkthrough of the PRIO-GRID data in R.
PRIO-GRID breaks up the Earth into a grid of little squares, or cells, each of which is 0.5 x 0.5 decimal degrees (roughly 50 x 50 km at the equator; you can read more about…
Dec 31, 2020
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2019-2025 Juan Tellez All content licensed under Creative Commons CC BY-SA 4.0

 

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