Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity.
In this paper, it is estimated the role of survival under dependence using the copula-graphic estimatorproposed by [2]. A simulation study is carried out for Weibull failure times, with two failure modes anddifferent percentages of censorship, where the survival function is compared through the copu...
| Main Authors: | , , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Universidad Pedagógica y Tecnológica de Colombia
2016
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| Subjects: | |
| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4235 |
| _version_ | 1801706333835100160 |
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| author | Bru Cordero, O. Brango García, H. Jaramillo Elorza, M. C. López, M. P. |
| author_facet | Bru Cordero, O. Brango García, H. Jaramillo Elorza, M. C. López, M. P. |
| author_sort | Bru Cordero, O. |
| collection | OJS |
| description | In this paper, it is estimated the role of survival under dependence using the copula-graphic estimatorproposed by [2]. A simulation study is carried out for Weibull failure times, with two failure modes anddifferent percentages of censorship, where the survival function is compared through the copula-graphicestimator, with the survival estimation assuming independence from two failure modes. It is shown a study application carried out in the Fishing Research Center of the University of Cordoba-CINPIC (Colombia), in which the mortality of juvenile fish subjected to different levels of salinity is wanted to be analyzed, and what constitutes the failure modes or causes of death (10 ppm and 12 ppm). It was found that assuming independence in the failure modes the survival function, underestimates the true survival rate, which is estimated in a reliable manner with the estimator copula graphic, in which the dependency between the failure modes is taken into account. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-4235 |
| institution | Revista Ciencia en Desarrollo |
| language | spa |
| publishDate | 2016 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-42352022-06-15T17:16:38Z Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity. Aplicación del estimador cópula gráfico en juveniles de bocachico Prochilodus magdalenae sometidos a diferentes niveles de salinidad. Bru Cordero, O. Brango García, H. Jaramillo Elorza, M. C. López, M. P. Estimador cópula gráfico censura función de superviencia. (Censored Estimator Copula-Graphic Survival Function.) In this paper, it is estimated the role of survival under dependence using the copula-graphic estimatorproposed by [2]. A simulation study is carried out for Weibull failure times, with two failure modes anddifferent percentages of censorship, where the survival function is compared through the copula-graphicestimator, with the survival estimation assuming independence from two failure modes. It is shown a study application carried out in the Fishing Research Center of the University of Cordoba-CINPIC (Colombia), in which the mortality of juvenile fish subjected to different levels of salinity is wanted to be analyzed, and what constitutes the failure modes or causes of death (10 ppm and 12 ppm). It was found that assuming independence in the failure modes the survival function, underestimates the true survival rate, which is estimated in a reliable manner with the estimator copula graphic, in which the dependency between the failure modes is taken into account. En este trabajo se estima la función de supervivencia bajo dependencia mediante el estimador cópula-gráfico propuesto por [2]. Se hace un estudio de simulación para tiempos de falla Weibull con dos modos de falla y diferentes porcentajes de censura, donde se compara la función de supervivencia mediante el estimador cópula-gráfico con la estimación de la supervivencia, asumiendo independencia entre dos modos de falla. Se muestra una aplicación de un estudio realizado en el Centro de Investigación Piscícola de la Universidad de Córdoba-CINPIC, en el cual se quiere analizar la mortalidad de juveniles de bocachico sometidos a diferentes niveles de salinidad, que constituyen los modos de falla o causas de muerte (10 ppm y más de 12 ppm). Se encontró que asumiendo independencia en los modos de falla la función de supervivencia subestima la verdadera supervivencia, que es estimada de manera confiable con el estimador copula gráfico, ya que sí tiene en cuenta la dependencia entre los modos de falla. Universidad Pedagógica y Tecnológica de Colombia 2016-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4235 10.19053/01217488.4235 Ciencia En Desarrollo; Vol. 7 No. 1 (2016): Enero a Junio; 93-102 Ciencia en Desarrollo; Vol. 7 Núm. 1 (2016): Enero a Junio; 93-102 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4235/3666 Derechos de autor 2016 CIENCIA EN DESARROLLO |
| spellingShingle | Estimador cópula gráfico censura función de superviencia. (Censored Estimator Copula-Graphic Survival Function.) Bru Cordero, O. Brango García, H. Jaramillo Elorza, M. C. López, M. P. Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity. |
| title | Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity. |
| title_alt | Aplicación del estimador cópula gráfico en juveniles de bocachico Prochilodus magdalenae sometidos a diferentes niveles de salinidad. |
| title_full | Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity. |
| title_fullStr | Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity. |
| title_full_unstemmed | Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity. |
| title_short | Application of the Copula-Graphic Estimator in Juvenile Bocachico Prochilodus Magdalenae Subjected to Different Levels of Salinity. |
| title_sort | application of the copula graphic estimator in juvenile bocachico prochilodus magdalenae subjected to different levels of salinity |
| topic | Estimador cópula gráfico censura función de superviencia. (Censored Estimator Copula-Graphic Survival Function.) |
| topic_facet | Estimador cópula gráfico censura función de superviencia. (Censored Estimator Copula-Graphic Survival Function.) |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4235 |
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