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Title: | Nonlinear transformation models: application to mortality of calves |
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Author: | López-Segovia, Lucas; Espinal Berenguer, Anna; Gómez Melis, Guadalupe |
Other authors: | Universitat Politècnica de Catalunya. Departament d'Estadística i Investigació Operativa; Universitat Politècnica de Catalunya. GREMA - Grup de Recerca en Estadística Matemàtica i les seves Aplicacions |
Abstract: | We present. an appl ication of the proportional hazard-proportional hazard cure models to evalu ate the environmental and genetic factors that affect both mortality and survival up to weaning of beef calves. We usc the ntlm I>ackage (software R.) to fit. nonlinear sem iparamctric transformation models, which include the proportional hazard cure models as a specia l case. Results indicate that genetic factors such as calv in g month and calvin g diHlculLy are associated with the long-term sur vivors hip of the calves. |
Subject(s): | -Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències -Computer science -Informàtica -Classificació AMS::68 Computer science::68Q Theory of computing |
Rights: | Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type: | Article - Published version Conference Object |
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