Covariance structure | Transformsa | 10-fold LCV score | Percent decrease | Clock time (minutes) | |||
Means | Variances | Random coefficients | |||||
Directly specified correlation | |||||||
EXCH | (int∙visit−1)0.1 | visit7.5 | -- | 0.57334 | 0.00% | 18.9 | |
Random coefficients | (int∙visit)−0.1 | 1 | 1 | 0.57302 | 0.06% | 201.9 | |