Now showing items 1-2 of 2

    • Log-ratio methods in mixture models for compositional data sets 

      Comas Cufí, Marc; Martín-Fernández, Josep Antoni; Mateu-Figueras, Glòria (Institut d'Estadística de Catalunya, 2016-12-19)
      Article
      Open Access
      When traditional methods are applied to compositional data misleading and incoherent results could be obtained. Finite mixtures of multivariate distributions are becoming increasingly important nowadays. In this paper, ...
    • Modelling count data using the logratio-normal-multinomial distribution 

      Comas Cufí, Marc; Martín-Fernández, Josep Antoni; Mateu-Figueras, Glòria; Palarea-Albaladejo, Javier (Institut d'Estadística de Catalunya, 2020-06-26)
      Article
      Open Access
      The logratio-normal-multinomial distribution is a count data model resulting from compounding a multinomial distribution for the counts with a multivariate logratio-normal distribution for the multinomial event probabilities. ...