PERTURBATION Block for MIXED models

When a mixed model is used, the previous proposal parameters are required for each model and must be enclosed in separate blocks. You must complete a PERTURBATIONi block for each model in the PERTURBATION block with the previously described parameters (see appendix A.8). Parameters which are specific to the MIXED model appear in the PERTURBATION block.

Model i priority: specify a priority for each model with respect to the other models and the priority used for the average rates.
Model 1 priority = 8
Model 2 priority = 24

Average rates, proposal priority: specify a priority for the perturbation of the model average substitution rate.
Average rates, proposal priority = 1

Average rates, proposal minimum acceptance rate and Average rates, proposal maximum acceptance rate: the acceptance range mcmcphase aims for, [0.21, 0.25] by default.
Average rates, proposal minimum acceptance rate = 0.15
Average rates, proposal maximum acceptance rate = 0.25

Average rates, initial step: allowed initial values are in the range ]0, 1.0]. The default value (when the dynamic step option is on) is 0.2. You cannot provide a specific initial step for each average substitution rate at the moment.
Average rates, initial step = 0.14

The upper-bound for the uniform prior distribution of the average substitution rate ratios is $100.0$.