An object of class disprog returned from methods
$sim_disease() in model classes. It contains simulated trajectories
through a multi-state model.
A disprog object inherits from data.table and contains
the following columns:
A random sample from the PSA.
The treatment strategy ID.
The patient ID.
The health state ID transitioned from.
The health state ID transitioned to.
An indicator equal to 1 if a patient is in their final health state during the simulation and 0 otherwise.
The time at the start of the interval.
The time at the end of the interval.