Analysis of rounded data in mixture normal model

Ningning Zhao () and Zhidong Bai ()

Statistical Papers, 2012, vol. 53, issue 4, 895-914

Abstract: Rounding errors have a considerable impact on statistical inferences, especially when the data size is large and the finite normal mixture model is very important in many applied statistical problems, such as bioinformatics. In this article, we investigate the statistical impacts of rounding errors to the finite normal mixture model with a known number of components, and develop a new estimation method to obtain consistent and asymptotically normal estimates for the unknown parameters based on rounded data drawn from this kind of models. Copyright Springer-Verlag 2012

Keywords: Finite mixture normal model; EM algorithm; Consistent estimation; Asymptotic normality; 62F10; 62F12 (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1007/s00362-011-0395-0

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