• A methodological proposal to elicit the vector of parameters π of the multinomial distribution 

      Flórez Rivera, Andrés Felipe; Correa Morales, Juan Carlos
      When there is no preliminary information or is too costly to obtain it, the informative priors provide a practical option and “ economic ” that serving as a basis for initiating a project or a particular study. In this ...
    • A modified Q-Q plot for large sample sizes 

      Velez, Jorge Iván; Correa Morales, Juan Carlos
      The Q-Q plot is a graphical tool for assessing the fit of observed data to a theoretical distribution, in which every single observation in the data is represented by a symbol (usually a dot). In many occasions, due either ...
    • Comparison of Gini Regression with OLS Regression and other Robust Linear Regression 

      Correa Morales, Juan Carlos; Florez, Gloria Patricia Carmona
      In this paper compares Gini regression (using the non-parametric approach of weighted average of slope, instead of the parametric approach) with OLS and other robust regression methods, the type L (LAV, linear combinations ...
    • Elicitación de una distribución a priori para el modelo logístico 

      Tangarife Quintero, Jenny Andrea; Correa Morales, Juan Carlos
      En muchas situaciones resulta util cuanticar informacion subjetiva que uno o varios expertos conocen acerca de un tema de interes, por esto, una parte importante dentro de la estadstica Bayesiana es la construccion de ...
    • Graphical method using neighborhoods for detecting outliers 

      Correa Morales, Juan Carlos; López Ríos, Víctor Ignacio
      We propose a new graphical method to help us to uncover  potential outliers in multivariate samples. The idea behind the method is to analyze the behavior of a growing neighborhood of each data point. This method is very ...
    • Multinomial distribution elicitation from various experts 

      Montoya Espinosa, Yurledy; Correa Morales, Juan Carlos
      The objective of this work is to implement an elicitation process to estimate the vector of parameters π to multinomial distribution through of Delphi method. Quantification of opinions and beliefs from multiple experts ...
    • Regresión Logística Bivariable para Tablas de Contingencia Usando Metodología GSK 

      Henao Zuluaga, Kelly Johana; Correa Morales, Juan Carlos
      La regresión logística bivariable considera una respuesta que contiene dos variables dicótomas que son explicadas por un conjunto de variables y que permite tener en cuenta el nivel de asociación que existe entre las ...