ESTIMATION AND INFERENCES IN LINEAR MIXED EFFECTS MODELS: A COMPARATIVE STUDY

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Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi - B Teorik Bilimler
Volume:2 Issue:2
ESTIMATION AND INFERENCES IN LINEAR MIXED EFFECTS MODELS: A COMPARATIVE STUDY

ESTIMATION AND INFERENCES IN LINEAR MIXED EFFECTS MODELS: A COMPARATIVE STUDY

Authors : Özlem AKSOY, Dursun AYDIN

Pages : 91-102

View : 69 | Download : 16

Publication Date : 2015-05-05

Article Type : Research Paper

Abstract :Smoothing methods that use basis functions with penalization can be formulated as fits in formlinear mixed effects models. This allows s uch models to be fitted using sta ndard mixed models structures. In this paper we provide an estimation and inference for linear mixed models using restrict- ed maximum likelihood and penalized spline smoothing, and describe the connection between the two. To this end, a real data example is considered and model is fitted in R using diff erent package. We see that penalized spline smoothing expressed in form of linear mixed model gives the better results than standard mixed effects model.
Keywords : Karma etkili model, Yarı parametrik regresyon, Cezalı splayn, düzeltme parametresi, Genelleştirilmiş çapraz geçerlilik

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