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A new family of quantile regression models applied to nutritional data

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  • Isaac E. Cortés
  • Mário de Castro
  • Diego I. Gallardo

Abstract

This paper introduces a new family of quantile regression models whose response variable follows a reparameterized Marshall-Olkin distribution indexed by quantile, scale, and asymmetry parameters. The family has arisen by applying the Marshall-Olkin approach to distributions belonging to the location-scale family. Models of higher flexibility and whose structure is similar to generalized linear models were generated by quantile reparameterization. The maximum likelihood (ML) method is presented for the estimation of the model parameters, and simulation studies evaluated the performance of the ML estimators. The advantages of the family are illustrated through an application to a set of nutritional data, whose results indicate it is a good alternative for modeling slightly asymmetric response variables with support on the real line.

Suggested Citation

  • Isaac E. Cortés & Mário de Castro & Diego I. Gallardo, 2024. "A new family of quantile regression models applied to nutritional data," Journal of Applied Statistics, Taylor & Francis Journals, vol. 51(7), pages 1378-1398, May.
    • Handle: RePEc:taf:japsta:v:51:y:2024:i:7:p:1378-1398
    DOI: 10.1080/02664763.2023.2203882
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