Rafael Irizarry

@rafalab

Applied statistician. I tweet data-driven observations, data science educational materials, academic research updates, and the occasional joke.

Boston, MA rafalab.github.io Joined August 2010

493 Following 29K Followers 2.2K Posts

Latest posts 5

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Rafael Irizarry @rafalab Mar 17, 2020

Online resources useful for learning or teaching data science, biostats and bioinformatics including 15 online courses. Topics include:

R
tidyverse
Dataviz & ggplot2
Linux, GitHub
Probability
Inference & Modeling
Regression
Machine Learning
Bioconductor

rafalab.github.io/pages/teaching…

Rafael Irizarry @rafalab Sep 8

🚨We are hiring! 🚨

The Department of Biostatistics @HarvardChan and the Department of Data Science @DanaFarber are recruiting a tenure-track Assistant/Associate Professor in statistics or machine learning with interests in single-cell or spatial genomics.

Link below 👇

Rafael Irizarry @rafalab Jun 17

Congratulations to the R Core Team on receiving the 2026 Rousseeuw Prize for Statistics. For over 30 years, R Core has maintained one of the most important pieces of infrastructure in statistics. Little recognition, thousands of volunteer hours, and enormous impact. Thank you!

Rafael Irizarry @rafalab May 18

A flaw in Person-Δ may be overstating progress in single-cell perturbation prediction models. Pearson warned about this in the 19th century: reusing the same controls induces spurious correlation. Split the controls, and much of the claimed prediction power fades. Link below 👇

Rafael Irizarry @rafalab Nov 25, 2025

📢 We are taking applications for our Postdoctoral Fellows Program at Harvard/DFCI!

🔹Join a research group in our department
🔹Co-mentoring opportunities with 2+ faculty
🔹Collaborate with investigators beyond our department
🔹Salary starts at $75K

Application link in replies.