3 papers
math.ST2021
Equivariant Estimation of Fréchet Means
Andrew McCormack, Peter Hoff
The Fréchet mean generalizes the concept of a mean to a metric space setting. In this work we consider equivariant estimation of Fréchet means for parametric models on metric space…
math.ST2020
The Stein Effect for Frechet Means
Andrew McCormack, Peter Hoff
The Frechet mean is a useful description of location for a probability distribution on a metric space that is not necessarily a vector space. This article considers simultaneous es…
math.ST2018
A New Look at -Tests
Andrew McCormack, Nancy Reid, Nicola Sartori +1
Directional inference for vector parameters based on higher order approximations in likelihood inference has recently been developed in the literature. Here we explore examples of…