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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Modelo de tempo de falha acelerado com fra??o de cura : uma abordagem unificada

Guedes, Alysson L?vio Vasconcelos 19 October 2011 (has links)
Made available in DSpace on 2015-03-03T15:28:32Z (GMT). No. of bitstreams: 1 AlyssonLVG_DISSERT.pdf: 742336 bytes, checksum: 91f0c0ab60d1d0bf85017fb8994c46fe (MD5) Previous issue date: 2011-10-19 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In this work we study the accelerated failure-time generalized Gamma regression models with a unified approach. The models attempt to estimate simultaneously the effects of covariates on the acceleration/deceleration of the timing of a given event and the surviving fraction. The method is implemented in the free statistical software R. Finally the model is applied to a real dataset referring to the time until the return of the disease in patients diagnosed with breast cancer / Neste trabalho apresentamos um estudo sobre o modelo de tempo de falha acelerado gama generalizado com fra??o de cura sob uma abordagem unificada. O modelo se prop?e a estimar simultaneamente o efeito de covari?veis na acelera??o/desacelera??o do tempo at? a ocorr?ncia de um evento e na fra??o de cura. O m?todo e implementado no software estat?stico livre R. Por fim o modelo e aplicado a dados reais referente ao tempo at? o retorno da doen?a em pacientes diagnosticados com c?ncer de mama

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