A Note on Bias of Closed-Form Estimators for the Gamma Distribution Derived From Likelihood Equations
| dc.contributor.author | Louzada, Francisco | |
| dc.contributor.author | Ramos, Pedro L. | |
| dc.contributor.author | Ramos, Eduardo [UNESP] | |
| dc.contributor.institution | Universidade de São Paulo (USP) | |
| dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
| dc.date.accessioned | 2019-10-04T12:14:32Z | |
| dc.date.available | 2019-10-04T12:14:32Z | |
| dc.date.issued | 2019-04-03 | |
| dc.description.abstract | We discuss here an alternative approach for decreasing the bias of the closed-form estimators for the gamma distribution recently proposed by Ye and Chen in 2017. We show that, the new estimator has also closed-form expression, is positive, and can be computed for n > 2. Moreover, the corrective approach returns better estimates when compared with the former ones. | en |
| dc.description.affiliation | Univ Sao Paulo, Dept Appl Math & Stat, Sao Carlos, SP, Brazil | |
| dc.description.affiliation | Univ Estadual Paulista, Pirapozinho, Brazil | |
| dc.description.affiliationUnesp | Univ Estadual Paulista, Pirapozinho, Brazil | |
| dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
| dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.format.extent | 195-199 | |
| dc.identifier | http://dx.doi.org/10.1080/00031305.2018.1513376 | |
| dc.identifier.citation | American Statistician. Alexandria: Amer Statistical Assoc, v. 73, n. 2, p. 195-199, 2019. | |
| dc.identifier.doi | 10.1080/00031305.2018.1513376 | |
| dc.identifier.issn | 0003-1305 | |
| dc.identifier.uri | http://hdl.handle.net/11449/184543 | |
| dc.identifier.wos | WOS:000472918300011 | |
| dc.language.iso | eng | |
| dc.publisher | Amer Statistical Assoc | |
| dc.relation.ispartof | American Statistician | |
| dc.rights.accessRights | Acesso aberto | |
| dc.source | Web of Science | |
| dc.subject | Bias correction | |
| dc.subject | Improve estimators | |
| dc.subject | Two-parameter gamma distribution | |
| dc.title | A Note on Bias of Closed-Form Estimators for the Gamma Distribution Derived From Likelihood Equations | en |
| dc.type | Artigo | |
| dcterms.rightsHolder | Amer Statistical Assoc | |
| unesp.author.orcid | 0000-0001-7815-9554[1] |