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Isabella Gollini

@isabellagollini.bsky.social
138 followers 212 following 2 posts

Assistant Prof in Statistics at University College Dublin, Ireland igollini.github.io

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Isabella Gollini @isabellagollini.bsky.social · 24/04/2026
New article with @albertocaimo.bsky.social
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Isabella Gollini @isabellagollini.bsky.social · 13/05/2025
New paper with @albertocaimo.bsky.social on "Separable models for dynamic signed #networks"! Let's have a chat about it at #Sunbelt2025 in Paris @insna.bsky.social
Separable models for dynamic signed networks https://arxiv.org/abs/2505.07669
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Reposted by Isabella Gollini
Alberto Caimo @albertocaimo.bsky.social · 07/05/2025
Great to be back at my alma mater in Genoa! Together with @isabellagollini.bsky.social, I'm giving a short course on Statistical Analysis of Complex Networks. Thanks to Eva Riccomagno and the Department of Maths for the warm welcome!
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Reposted by Isabella Gollini
Alberto Caimo @albertocaimo.bsky.social · 14/04/2025
◆ Bergm workshop at #Insna #Sunbelt 2025◆ #rstat #Bayesian #statistical #networkanalysis
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Reposted by Isabella Gollini
Andrew Heiss @andrew.heiss.phd · 27/01/2025
New blog post! Here's an #rstats guide for how to (1) get CPS data from IPUMS and (2) compare sample and population proportions both frequentistly and Bayesianly with {brms} (with ROPEs!), and (3) make pretty plots and tables #econsky #polisky #dataskyence www.andrewheiss.com/blog/2025/01...
Plot showing respondent demographic proportions compared to national proportions, overlaid on variable-specific regions of practical equivalence (ROPEs)Table showing sample characteristics compared to nationally representative Current Population Survey (CPS) estimates, with probability that the sample is equivalent to the national proportionAlso, it’s important to check the variable details to check for availability. While basic demographic variables like age, sex, marital status, etc. are available in both the monthly surveys and in the annual ASEC, more specialized variables are not.

Variables related to philanthropy and volunteering are only available in September (since they’re part of a special CPS Volunteer Supplement), and only in some years:

[Screenshot from the IPUMS website showing the availability of the volunteer status CPS variable]Contents for the post

Nationally representative demographic data
Accessing US Census data
ACS
CPS (and others!)
Getting started
Getting CPS data from the IPUMS website
Finding variables
Selecting samples
Downloading the data
More reproducible alternative: using the IPUMS API
Loading CPS data
Summarizing CPS data
Weighting
Calculating population-level proportions
Summarizing sample proportions
Testing sample vs. population proportions frequentist-ly
One-sample proportion test for age
One-sample proportion test for volunteering
Proportion tests and differences for everything all at once
Testing sample vs. population proportions Bayesian-ly
ew null hypothesis significance testing
Modeling proportions with a binomial distribution
Working with the posterior
The region of practical equivalence (ROPE)
Bayesian proportion test for volunteering
Posterior proportions, differences, and ROPEs for everything all at once
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Reposted by Isabella Gollini
Jan Broder Engler @jbengler.de · 23/01/2025
In case you ever wondered about the differences between magrittr pipe and base pipe 🤔 This table is taken from a great stackoverflow answer by @GeorgKindermann stackoverflow.com/questions/67... #rstats #dataviz #phd
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Reposted by Isabella Gollini
Ingo Rohlfing @ingorohlfing.bsky.social · 21/11/2024
Embedding R/exams Exercises as Forms in R/Markdown or Quarto Documents www.r-exams.org/tutorials/ex... #rstats This is pretty neat and something I should really explore for one of my courses.
Screenshot from webpage in post. It shows two interactive statistics questions created with {exams2forms}
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