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      Generación de tiempos de falla dependientes Weibull bivariados usando cópulas Translated title: Generation of Weibull Bivariate Dependent Failure Times Using Copulas

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          Abstract

          La distribución Weibull bivariada es muy importante en confiabilidad y en análisis de supervivencia. La dependencia para este tipo de problemas ha venido cobrando gran importancia en años recientes. En la literatura, se conocen algoritmos para generar una distribución Weibull univariada y distribuciones bivariadas con marginales independientes. En este artículo, se presenta un algoritmo para generar tiempos de falla Weibull bivariados dependientes, usando una representación cópula para la función de confiabilidad Weibull bivariada. Tal representación se obtiene utilizando modelos cópula arquimedianos. En particular, se utilizó la familia Gumbel. Se realizó una aplicación del algoritmo cópula, cuyos resultados fueron validados exitosamente.

          Translated abstract

          The bivariate Weibull distribution is very important in both reliability and survival analysis. The dependence for these kind of problems has been gaining great importance in recent years. In the literature, there are algorithms to generate univariate Weibull distributions and bivariate Weibull distributions with independent marginal distributions. In this paper, we present an algorithm to generate dependent bivariate Weibull failure times using a copula representation for the bivariate Weibull reliability function. Such representation is obtained using archimedean copula models. In particular, we used the Gumbels family. An application of the copula algorithm was done and the results were successfully validated.

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          Most cited references26

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          Modern Applied Statistics with S

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            R: A language and environment for statistical computing

            (2007)
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              Multivariate models and dependence concepts

              H Joe, Joe H., JOE (1997)
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                Author and article information

                Journal
                rce
                Revista Colombiana de Estadística
                Rev.Colomb.Estad.
                Departamento de Estadística - Universidad Nacional de Colombia. (Bogotá, Distrito Capital, Colombia )
                0120-1751
                December 2008
                : 31
                : 2
                : 169-181
                Affiliations
                [04] Medellín orgnameUniversidad Nacional de Colombia orgdiv1Facultad de Ciencias orgdiv2Departamento de Estadística Colombia syanez@ 123456unal.edu.co
                [03] Medellín orgnameUniversidad Nacional de Colombia orgdiv1Facultad de Ciencias orgdiv2Departamento de Estadística Colombia ecmanota@ 123456unal.edu.co
                [02] Medellín orgnameUniversidad Nacional de Colombia orgdiv1Facultad de Ciencias orgdiv2Departamento de Estadística Colombia cmlopera@ 123456unal.edu.co
                [01] Medellín orgnameUniversidad Nacional de Colombia orgdiv1Facultad de Ciencias orgdiv2Departamento de Estadística Colombia mcjarami@ 123456unal.edu.co
                Article
                S0120-17512008000200003 S0120-1751(08)03100203
                d0753cd5-0b10-421a-88a9-71675982104d

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : December 2007
                : September 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 26, Pages: 13
                Product

                SciELO Colombia

                Self URI: Texto completo solamente en formato PDF (ES)
                Categories
                Artículos originales de investigación

                cópula,datos dependientes,distribución bivariada,Copula,Dependent data,Bivariate distribution

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