Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/34347
Title: A new approach to simple correspondence analysis with emphasis on the violation of the independence assumption of the levels of categorical variables
Other Titles: Uma nova abordagem da análise de correspondência simples com ênfase na violação da hipótese de independência dos níveis das variáveis categóricas
Keywords: Binomial
Residuals
Cophenetic
Inertia
Binomial
Resíduos
Cofenética
Inércia
Issue Date: 2018
Publisher: Universidade Estadual de Maringá
Citation: COSTA, A. L. A.; BRIGHENTI, C. R. G.; CIRILLO, M. A. A new approach to simple correspondence analysis with emphasis on the violation of the independence assumption of the levels of categorical variables. Acta Scientiarum. Technology, Maringá, v. 40, 2018.
Abstract: The main hypothesis of correspondence analysis is given by the independence between the levels of categorical variables. Due to violation of this hypothesis, this study aims to improve the technique of correspondence analysis, providing a new approach for the calculation of the coordinates through the residual incorporation by tables in which categories have different levels of correlation. For this purpose, the simulation was made using Monte Carlo to generate frequencies from the correlated binomial distribution BC (n, π, ρ). It was concluded that in all evaluated scenarios the approach is promising in the sense that the objects were better discriminated against conventional approach. Moreover, the proposed procedure for obtaining the coordinates is likely to be used on real data as shown in the application example.
URI: http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/34953
http://repositorio.ufla.br/jspui/handle/1/34347
Appears in Collections:DES - Artigos publicados em periódicos

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