An object of class costs
returned from methods
$sim_costs()
in model classes that store simulated costs.
A costs
object inherits from data.table
and contains
the following columns:
A random sample from the PSA.
The treatment strategy ID.
The patient ID.
The subgroup ID.
The health state ID.
The rate used to discount costs.
The cost category (e.g., drug costs, medical costs, etc).
The simulated cost values.