Influence diagnostics in Birnbaum-Saunders nonlinear regression models
Methodology
2011-11-22 v1
Abstract
We consider the issue of assessing influence of observations in the class of Birnbaum-Saunders nonlinear regression models, which is useful in lifetime data analysis. Our results generalize those in Galea et al. [2004, Influence diagnostics in log-Birnbaum-Saunders regression models. Journal of Applied Statistics, 31, 1049-1064] which are confined to Birnbaum-Saunders linear regression models. Some influence methods, such as the local influence, total local influence of an individual and generalized leverage are discussed. Additionally, the normal curvatures of local influence are derived under various perturbation schemes.
Cite
@article{arxiv.0904.4139,
title = {Influence diagnostics in Birnbaum-Saunders nonlinear regression models},
author = {Artur J. Lemonte},
journal= {arXiv preprint arXiv:0904.4139},
year = {2011}
}
Comments
10 pages, submitted for publication