In this work we propose a new discrete probability distribution useful when we work with ordered categorical data. The discrete-beta distribution has a highly flexible shape and it can be either over-dispersed or under-dispersed with respect to the binomial distribution. It has only two parameters, which have a very clear interpretation: the mean and the precision parameters of the beta latent variable. Adding directly covariates on parameters (according to CUB model framework), it is very suitable to regression.
Ordinal data: a new model with applications / Ursino, Moreno. - (2014). [10.6092/polito/porto/2535701]
Ordinal data: a new model with applications
URSINO, MORENO
2014
Abstract
In this work we propose a new discrete probability distribution useful when we work with ordered categorical data. The discrete-beta distribution has a highly flexible shape and it can be either over-dispersed or under-dispersed with respect to the binomial distribution. It has only two parameters, which have a very clear interpretation: the mean and the precision parameters of the beta latent variable. Adding directly covariates on parameters (according to CUB model framework), it is very suitable to regression.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2535701
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