Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/76189
Type: Artigo
Title: A new index to measure positive dependence in trivariate distributions
Author: García, Jesús E.
González-López, V.A.
Nelsen, R.B.
Abstract: We introduce a new index to detect dependence in trivariate distributions. The index is based on the maximization of the coefficients of directional dependence over the set of directions. We show how to calculate the index using the three pairwise Spearman's rho coefficients and the three common 3-dimensional versions of Spearman's rho. We obtain the asymptotic distributions of the empirical processes related to the estimators of the coefficients of directional dependence and also we derive the asymptotic distribution of our index. We display examples where the index identifies dependence undetected by the aforementioned 3-dimensional versions of Spearman's rho. The value of the new index and the direction in which the maximal dependence occurs are easily computed and we illustrate with a simulation study and a real data set. (C) 2012 Elsevier Inc. All'rights reserved.
We introduce a new index to detect dependence in trivariate distributions. The index is based on the maximization of the coefficients of directional dependence over the set of directions. We show how to calculate the index using the three pairwise Spearma
Subject: Análise multivariada
Distribuição assintótica (Teoria da probabilidade)
Cópulas (Estatística matemática)
Country: Estados Unidos
Editor: Elsevier
Citation: Journal Of Multivariate Analysis. Elsevier Inc, v. 115, n. 481, n. 495, 2013.
Rights: Aberto
Identifier DOI: 10.1016/j.jmva.2012.11.007
Address: https://www.sciencedirect.com/science/article/pii/S0047259X12002667
Date Issue: 2013
Appears in Collections:IMECC - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000314193700031.pdf978.12 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.