This paper studies the asymptotic power of tests of sphericity against perturbations in a single unknown direction as both the dimensionality of the data and the number of observations go to infinity.

Scandinavian Journal of Statistics, Vol. 26, No. 2 (Jun., 1999), pp. 297-318 (22 pages) Properties of Huber's M-estimators based on estimating equations have been studied extensively and are well ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...