Adaptive fitting of linear mixed-effects models with correlated random effects
نویسندگان
چکیده
منابع مشابه
Adaptive Fitting of Linear Mixed-Effects Models with Correlated Random-effects.
Linear mixed-effects model has been widely used in longitudinal data analyses. In practice, the fitting algorithm can fail to converge due to boundary issues of the estimated random-effects covariance matrix G, i.e., being near-singular, non-positive definite, or both. Current available algorithms are not computationally optimal because the condition number of matrix G is unnecessarily increase...
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ژورنال
عنوان ژورنال: Journal of Statistical Computation and Simulation
سال: 2013
ISSN: 0094-9655,1563-5163
DOI: 10.1080/00949655.2012.690763