2 papers
stat.ME2017
Nonparametric covariance estimation for mixed longitudinal studies, with applications in midlife women's health
Anru R. Zhang, Kehui Chen
In mixed longitudinal studies, a group of subjects enter the study at different ages (cross-sectional) and are followed for successive years (longitudinal). In the context of such…
stat.ME2017
A test of weak separability for multi-way functional data, with application to brain connectivity studies
Brian Lynch, Kehui Chen
This paper concerns the modeling of multi-way functional data where double or multiple indices are involved. We introduce a concept of weak separability. The weakly separable struc…