ELA, Volume 16, pp. 187-203, August 2007, abstract.

Some algebraic and statistical properties of WLSEs 
under a general growth curve model

Yongge Tian and Yoshio Takane

Growth curve models are  used to analyze repeated 
measures data (longitudinal data), which are functions 
of time. General expressions of weighted least-squares 
estimators (WLSEs) of parameter matrices were given 
under a general growth curve model. Some algebraic and 
statistical properties of the estimators are also derived 
through the matrix rank method.