| run {SimEngine} | R Documentation |
Run the simulation
Description
This is the workhorse function of SimEngine that actually runs the simulation. This should be called after all functions that set up the simulation (set_config, set_script, etc.) have been called.
Usage
run(sim)
Arguments
| sim | A simulation object of class sim_obj, usually created by new_sim |
Value
The original simulation object but with the results attached (along with any errors and warnings). Results are stored in sim$results, errors are stored in sim$errors, and warnings are stored in sim$warnings.
Examples
# The following is a toy example of a simulation, illustrating the use of
# the run function.
sim <- new_sim()
create_data <- function(n) { rpois(n, lambda=5) }
est_mean <- function(dat, type) {
if (type=="M") { return(mean(dat)) }
if (type=="V") { return(var(dat)) }
}
sim %<>% set_levels(n=c(10,100,1000), est=c("M","V"))
sim %<>% set_config(num_sim=1)
sim %<>% set_script(function() {
dat <- create_data(L$n)
lambda_hat <- est_mean(dat=dat, type=L$est)
return (list("lambda_hat"=lambda_hat))
})
sim %<>% run()
sim$results %>% print()
[Package SimEngine version 1.2.0 ]