Now showing items 1-4 of 4

    • A Bimodal Extension of the Generalized Gamma Distribution 

      Çankaya, Mehmet Niyazi; Bulut, Yakup Murat; Dogru, Fatma Zehra; Arslan, Olcay
      A bimodal extension of the generalized gamma distribution is proposed by using a mixing approach. Some distributional properties of the new distribution are investigated. The maximum likelihood (ML) estimators for the ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Estadística. 
    • Alpha-Skew Generalized t Distribution 

      Acitas, Sukru; Senoglu, Birdal; Arslan, Olcay
      The alpha-skew normal (ASN) distribution has been proposed recently in the literature by using standard normal distribution and a skewing approach. Although ASN distribution is able to model both skew and bimodal data, it ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Estadística. 
    • Estimation and Testing in One-Way ANOVA when the Errors are Skew-Normal 

      Celik, Nuri; Senoglu, Birdal; Arslan, Olcay
      We consider one-way analysis of variance (ANOVA) model when the error terms have skew- normal distribution. We obtain the estimators of the model parameters by using the maximum likelihood (ML) and the modified maximum ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Estadística. 
    • Robust mixture regression based on the skew t distribution 

      Doğru, Fatma Zehra; Arslan, Olcay
      In this study, we propose a robust mixture regression procedure based on the skew t distribution to model heavy-tailed and/or skewed errors in a mixture regression setting. Using the scale mixture representation of the ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Estadística.