A log-extended Weibull regression model
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
18/10/2012
18/10/2012
2009
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Resumo |
A bathtub-shaped failure rate function is very useful in survival analysis and reliability studies. The well-known lifetime distributions do not have this property. For the first time, we propose a location-scale regression model based on the logarithm of an extended Weibull distribution which has the ability to deal with bathtub-shaped failure rate functions. We use the method of maximum likelihood to estimate the model parameters and some inferential procedures are presented. We reanalyze a real data set under the new model and the log-modified Weibull regression model. We perform a model check based on martingale-type residuals and generated envelopes and the statistics AIC and BIC to select appropriate models. (C) 2009 Elsevier B.V. All rights reserved. CNPq CAPES |
Identificador |
COMPUTATIONAL STATISTICS & DATA ANALYSIS, v.53, n.12, p.4482-4489, 2009 0167-9473 http://producao.usp.br/handle/BDPI/18941 10.1016/j.csda.2009.07.004 |
Idioma(s) |
eng |
Publicador |
ELSEVIER SCIENCE BV |
Relação |
Computational Statistics & Data Analysis |
Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE BV |
Palavras-Chave | #FAILURE RATE-FUNCTION #CENSORED-DATA #RESIDUALS #SURVIVAL #Computer Science, Interdisciplinary Applications #Statistics & Probability |
Tipo |
article original article publishedVersion |