Covariance structure | Transformsa | 10-fold LCV score | Percent decrease | Clock time (minutes) | |||
Probabilities | Variances | Random coefficients | |||||
Directly specified correlation | |||||||
UN | (int∙visit−0.1)5, visit−8, (int∙visit)−8 | 1, visit1.5 | -- | 0.43213 | 0.66% | 301.0 | |
Random coefficients | (visit−0.1∙int)8, (visit∙int)−2.1, visit−8, | 1 | 1, visit0.9 | 0.43502 | 0.00% | 1357.8 | |