| Covariance structure | Transformsa | 10-fold LCV score | Percent decrease | Clock time (minutes) | |||
| Probabilities | Variances | Random coefficients | |||||
| Directly specified correlation | |||||||
| IND | visit−0.1 | 1, visit1.1 | -- | 0.35234 | 17.96% | 0.9 | |
| EXCH | visit−0.1 | 1 | -- | 0.41594 | 3.15% | 2.8 | |
| AR1 | visit−0.1 | 1 | -- | 0.42113 | 1.94% | 5.3 | |
| UN | visit−0.1 | 1, visit1.1 | -- | 0.42691 | 0.59% | 19.6 | |
| Random coefficients | visit−0.1 | 1 | 1, visit0.6 | 0.42946 | 0.00% | 15.3 | |