A note on Influence diagnostics in nonlinear mixed-effects elliptical models
arXiv:0906.0113 · doi:10.1016/j.csda.2010.06.007
Abstract
This paper provides general matrix formulas for computing the score function, the (expected and observed) Fisher information and the matrices (required for the assessment of local influence) for a quite general model which includes the one proposed by Russo et al. (2009). Additionally, we also present an expression for the generalized leverage. The matrix formulation has a considerable advantage, since although the complexity of the postulated model, all general formulas are compact, clear and have nice forms.
Paper submitted for possible publication, 6 pages (formulas corrected)