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Type: Artigo
Title: Local influence analysis for skew-normal linear mixed models
Author: Montenegro, Lourdes C.
Lachos, Victor H.
Bolfarine, Heleno
Abstract: In this article, we consider local influence analysis for the skew-normal linear mixed model (SN-LMM). As the observed data log-likelihood associated with the SN-LMM is intractable, Cook's well-known approach cannot be applied to obtain measures of local influence. Instead, we develop local influence measures following the approach of Zhu and Lee (2001). This approach is based on the use of an EM-type algorithm and is measurement invariant under reparametrizations. Four specific perturbation schemes are discussed. Results obtained for a simulated data set and a real data set are reported, illustrating the usefulness of the proposed methodology
Subject: Distribuição normal assimétrica
Country: Estados Unidos
Editor: Taylor & Francis
Rights: Fechado
Identifier DOI: 10.1080/03610920802238647
Date Issue: 2009
Appears in Collections:IMECC - Artigos e Outros Documentos

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