About Me
I’m a second‑year master’s student in biostatistics at Columbia University Mailman School of Public Health, where I work with Professors Linda Valeri and Todd Ogden on causal mediation analysis, functional data analysis, and other methods that bridge statistics and public‑health applications.
Before Columbia, I earned a B.A. in Biology (Ecology & Evolution) from the University of Chicago. Under the mentorship of Professors Graham Slater and John Bates at the Field Museum, I investigated 3‑D morphometric evolution of avian cranial structures and contributed to specimen‑based molecular and morphometric projects at the Field Museum.
My broader research interests span causal inference, functional data analysis, animal morphometrics, statistical theory, and ecological and environmental systems. Outside the lab, you’ll find me giving out bird walks to other students and exploring New York City via all kinds of public transit.
Skills
Programming: R (advanced), Python, SAS, SQL, Git/GitHub, LaTeX
Statistical Methods: Causal Mediation Analysis, Functional Data Analysis (FDA), Competing Risks Research, Longitudinal Data Analysis, High‑Density Morphometrics
Teaching
Data Science I (Fall 2025), Columbia University Mailman School of Public Health.
Supported master's level students in mastering R‑based data science workflows, including data cleaning, visualization, and reproducible research practices.
Contact
Email: justinxiaonixu@gmail.com