Influence diagnostics in beta regression

Espinheira, Patri­cia L., Silvia L.P. Ferrari and Francisco Cribari-Neto

Computational Statistics & Data Analysis, 2008, vol. 52, issue 9, 4417-4431

Abstract: We consider the issue of assessing influence of observations in the class of beta regression models, which is useful for modelling random variables that assume values in the standard unit interval and are affected by independent variables. We propose a Cook-like distance and also measures of local influence under different perturbation schemes. Applications using real data are presented.

Date: 2008
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