摘要
Linearmixedmodels(LMMs)havebecomeanimportantstatisticalmethodforanalyzingclusterorlongitudinaldata.Inmostcases,itisassumedthatthedistributionsoftherandomeffectsandtheerrorsarenormal.Thispaperremovesthisrestrictionsandreplacethembythemomentconditions.WeshowthattheleastsquareestimatorsoffixedeffectsareconsistentandasymptoticallynormalingeneralLMMs.Aclosed-formestimatorofthecovariancematrixfortherandomeffectisconstructedanditsconsistentisshown.Basedonthis,theconsistentestimatefortheerrorvarianceisalsoobtained.Asimulationstudyandarealdataanalysisshowthattheprocedureiseffective.
出版日期
2013年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)