http://orcid.org/0000-0001-8184-7403
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ABSTRACT
In this note we present a modification in the EM algorithm for the destructive negative binomial cure rate model. This alteration enables us to obtain the estimates of the whole parameter vector from the complete log-likelihood function, avoiding the corresponding observed log-likelihood function, which is more involved. To achieve this goal, we resort to the mixture representation of the negative binomial distribution in terms of the Poisson and gamma distributions.
Disclosure statement
No potential conflict of interest was reported by the authors.
ORCID
Diego I. Gallardo http://orcid.org/0000-0001-8184-7403
Additional information
Funding
The first author acknowledges partial support from Programa de iniciación en investigación para investigadores jv´enes de la Universidad de Antofagasta, INI 16-17-01. The work of the first author is partially supported by grant Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) 11160670, Chile. The work of the third author is partially supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil.