A comparison between Poisson and zero-inflated Poisson regression models with an application to number of black spots in Corriedale sheep

A comparison between Poisson and zero-inflated Poisson regression models with an application to number of black spots in Corriedale sheep

<p>Abstract</p> <p>Dark spots in the fleece area are often associated with dark fibres in wool, which limits its competitiveness with other textile fibres. Field data from a sheep experiment in Uruguay revealed an excess number of zeros for dark spots. We compared the performance o...

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Bibliographic Details
Main Authors: Rodrigues-Motta Mariana, Chang Yu-Mei, Urioste Jorge I, Naya Hugo, Kremer Roberto, Gianola Daniel
Format: Article
Language:deu
Published: BMC 2008-07-01
Series:Genetics Selection Evolution
Subjects:
zero-inflated Poisson
sheep
spot
posterior predictive ability
Bayesian hierarchical model
Online Access:http://www.gsejournal.org/content/40/4/379

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