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

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 of four Poisson and zero-inflated Pois...

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Bibliografiske detaljer
Main Authors: Naya, Hugo, Urioste, Jorge I, Chang, Yu-Mei, Rodrigues-Motta, Mariana, Kremer, Roberto, Gianola, Daniel
Format: Artigo
Sprog:Inglês
Udgivet: BioMed Central 2008
Fag:
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC2674908/
https://ncbi.nlm.nih.gov/pubmed/18558072
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1297-9686-40-4-379
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