If no parameter sample is provided, sample from posterior predictive
Arguments
- model
a model of class "Model"
- data
the (multi-state) data frame to impute further trajectories for.
- nsim
number of samples to draw
- n_per_group
the number of individuals per group to be recruited.
- now
exact time point relative to start of the trial
- seed
integer, fixed random seed; NULL for no fixed seed
- ...
further arguments passed to method implementations