Department of Statistics
University of British Columbia
Vancouver, BC, V6T 1Z4, Canada
Contact: The best way to reach me is by email.
Emails: lang AT stat DOT ubc DOT ca (or firstname.lastname@example.org if your email to my stat.ubc.ca address fails)
Office: Room 3126, Earth Sciences Building (ESB), 2207 Main Mall. Phone: (604) 822-3319.
Graduate advising (2018 - current): For questions about UBC statistics graduate programs (e.g., admission, requirements, M.Sc/Ph.D programs), many of your questions may already have official answers here. Please read the online information before email or visit me. For questions about UBC Master of Data Science (MDS), please check details here (note that MDS is run independently and has different requirements - it is a joint program between Statistics and Computer Science).
Office hour (Sept - Dec 2019): Thursdays 2pm - 3:30pm, ESB 3126
The courses I teach vary from year to year:
My research is mostly motivated from analysis of datasets from health sciences, especially in HIV/AIDS studies and cancer studies, but the models and methods can be applied in other areas such as economics and engineering. My main focus is on analysis of longitudinal data (or panel data) and survival data when there are missing values, censored values, measurement errors, and outliers. My another focus is on constrained inference or order-restricted hypothesis testing, i.e., hypothesis tests for multiple parameters when the parameters are constrained.