scholarly journals Modelling the random effects covariance matrix in longitudinal data

2003 ◽  
Vol 22 (10) ◽  
pp. 1631-1647 ◽  
Author(s):  
Michael J. Daniels ◽  
Yan D. Zhao
Keyword(s):  
Longitudinal Data ◽  
Covariance Matrix ◽  
Random Effects

scholarly journals Estimation of the covariance matrix of random effects in longitudinal studies

2007 ◽  
Vol 35 (6) ◽  
pp. 2795-2814 ◽  
Author(s):  
Yan Sun ◽  
Wenyang Zhang ◽  
Howell Tong
Keyword(s):  
Longitudinal Studies ◽  
Covariance Matrix ◽  
Random Effects

Conditional mix-GEE models for longitudinal data with unspecified random-effects distributions

2018 ◽  
Vol 47 (4) ◽  
pp. 862-876 ◽  
Author(s):  
Yanchun Xing ◽  
Lili Xu ◽  
Wenqing Ma ◽  
Zhichuan Zhu
Keyword(s):  
Longitudinal Data ◽  
Random Effects
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