Algebraic Expression for the Relative Likelihood-Based Evidential Prediction of an Ordinal Variable

Given past observations of an ordinal variable, we want to predict a future observation. This paper provides the solution, according to the relative likelihood-based evidential method for statistical inference and prediction, of this problem, in an algebraic form. This result is obtained after establishing that the prediction of an ordinal variable can be computed, under some conditions, by integrating the marginals of the possibility distribution representing the estimation uncertainty in this method.