Covariance structure | Transformsa | 10-fold LCV score | Percent decrease | Clock time (minutes) | |||
Means | Variances | Random coefficients | |||||
Directly specified correlation | |||||||
EXCH | 1 | visit0.07, visit13 | -- | 0.023835 | 0.00% | 6.3 | |
Random coefficients | 1 | 1, visit−0.4, visit14 | 1 | 0.022141 | 7.11% | 19.2 | |