Showing 81 - 88 of 88
The minimum covariance determinant (MCD) estimator of scatter is one of the most famous robust procedures for multivariate scatter. Despite the quite important research activity related to this estimator, culminating in the recent thorough asymptotic study of Cator and Lopuhaä (2010, 2012), no...
Persistent link: https://www.econbiz.de/10011041923
As in the multivariate setting, the class of elliptical distributions on separable Hilbert spaces serves as an important vehicle and reference point for the development and evaluation of robust methods in functional data analysis. In this paper, we present a simple characterization of elliptical...
Persistent link: https://www.econbiz.de/10011041976
A formula for the determinant of a matrix in terms of powers of traces is presented. Then, some expansions for powers of determinants of positive definite matrices in terms of zonal polynomials are derived. By making use of these, the associated elliptical families of matrix-variate...
Persistent link: https://www.econbiz.de/10011041980
Persistent link: https://www.econbiz.de/10005390571
Persistent link: https://www.econbiz.de/10005395647
Persistent link: https://www.econbiz.de/10005760229
In this paper, functional models with not replications are investigated within the class of the elliptical distributions. Emphasis is placed on the special case of the Student-t distribution. Main results encompasses consistency and asymptotic normality of the maximum likelihood estimators. Due...
Persistent link: https://www.econbiz.de/10005199474
Persistent link: https://www.econbiz.de/10015045168