Artículos de revistas
Influence Diagnostics for a Skew Extension of the Grubbs Measurement Error Model
Fecha
2009Registro en:
COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION, v.38, n.4, p.667-681, 2009
0361-0918
10.1080/03610910802618385
Autor
MONTENEGRO, Lourdes C.
BOLFARINE, Heleno
LACHOS, Victor H.
Institución
Resumen
Influence diagnostics methods are extended in this article to the Grubbs model when the unknown quantity x (latent variable) follows a skew-normal distribution. Diagnostic measures are derived from the case-deletion approach and the local influence approach under several perturbation schemes. The observed information matrix to the postulated model and Delta matrices to the corresponding perturbed models are derived. Results obtained for one real data set are reported, illustrating the usefulness of the proposed methodology.