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Erika

@erikaduan.bsky.social

44 followers 110 following 2 posts

Public sector data scientist and former immunologist. I'm just here for the #rstats

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Reposted by Erika

Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 10d

Was asked about collinearity again, so here's Vahove's 2019 post on why it isn't a problem that needs a solution. Design the model(s) to answer a formal question and free your mind janhove.github.io/posts/2019-0...

tl;dr

Collinearity is a form of lack of information that is appropriately reflected in the output of your statistical model.
When collinearity is associated with interpretational difficulties, these difficulties aren’t caused by the collinearity itself. Rather, they reveal that the model was poorly specified (in that it answers a question different to the one of interest), that the analyst overly focuses on significance rather than estimates and the uncertainty about them or that the analyst took a mental shortcut in interpreting the model that could’ve also led them astray in the absence of collinearity.
If you do decide to “deal with” collinearity, make sure you can still answer the question of interest.

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Reposted by Erika

Julia Silge @juliasilge.com · Aug 10

I'm excited to speak this afternoon at #useR2025 on outgrowing your laptop with #Positron for #rstats users!

You can check out my slides at juliasilge.github.io/useR-2025/

Galaxy brain meme format outlining options for working with data: CSV file, parquet & duckdb, databases, and remote SSH sessions

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Erika @erikaduan.bsky.social · Jul 28

Me too please :).

Reposted by Erika

Noah Greifer @noahgreifer.bsky.social · Apr 16

Really nice new paper by Jingyu Zhang, Oliver Lüdtke, and Alexander Robitzsch on the performance of doubly robust estimators of the ATE. A great example of clear writing and reporting, useful visualization through tables, and a review of modern literature. osf.io/5uj2f_v2

OSF

osf.io

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Erika @erikaduan.bsky.social · Jul 13

I've written a simple guide to the new Positron IDE for #rstats and #python programming. I think that RStudio is still the most thoughtfully designed IDE for R programming but Positron is very useful if you also code a lot in Python.

github.com/erikaduan/r_...

github.com

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