Click here to see what I look like.
Statistical methods in health economics.
Data and code for predicting interim analysis times in randomized clinical trials.
Sensitivity to nonignorability.
Power and sample-size functions.
Repeated-series longitudinal data modeling functions.
Data files from some past publications.
Yes, Phyllis Heitjan is my daughter.
Daniel F. Heitjan, PhD Department of Biostatistics & Epidemiology University of Pennsylvania School of Medicine 622 Blockley Hall/423 Guardian Drive Philadelphia, PA 19104-6021 USA voice: 215-573-7328 fax: 215-573-4865 web: http://www.cceb.med.upenn.edu/heitjanemail: dheitjan@mail.med.upenn.edu