A data frame with 2000 observations on the following 6 variables. multiLongCount is a simulated bivariate longitudinal count dataset assuming there are 500 subjects in the study whose data are collected at 4 equally-spaced time points.
A data frame with 2000 observations on the following 6 variables. multiLongGaussian is a simulated bivariate longitudinal continuous dataset assuming there are 500 subjects in the study whose data are collected at 4 equally-spaced time points.
A data frame with 2004 observations on the following 14 variables. motherStress is a longitudinal dataset which includes daily information of the participants. There are 167 mothers and children enrolled in the study.
providing 
.