Maximum-likelihood estimation of the 4-parameter generalized weilbull distribution
Weibull distrlbution is being increasingly employed by researches in tectinology, medicine and other áreas. Its generatlons to four parameters have been proposed, independently, by Stacy (1962) and Cohén (1969) ln this paper, we obtain the maximum-Likelihood estimators of the parameters of generaliz...
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1992 |
| País: | Colombia |
| Institución: | Universidad Nacional de Colombia |
| Repositorio: | Repositorio UN |
| Idioma: | español |
| OAI Identifier: | oai:repositorio.unal.edu.co:unal/24320 |
| Acceso en línea: | https://repositorio.unal.edu.co/handle/unal/24320 http://bdigital.unal.edu.co/15357/ |
| Access Level: | acceso abierto |
| Palabra clave: | Estadística matemática distribución generalizada de Weibull Distribución generalizada gamma Funciones digamma-trigamma Matriz de varianza-covarianza Análisis de varianza |
| Sumario: | Weibull distrlbution is being increasingly employed by researches in tectinology, medicine and other áreas. Its generatlons to four parameters have been proposed, independently, by Stacy (1962) and Cohén (1969) ln this paper, we obtain the maximum-Likelihood estimators of the parameters of generalized Weibull distrlbution (g.w.d). The variance-covariance matrix is derived. We also consider the special coses when the threshold parameter and/or a shape parameter are known. |
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