Call the simulator for one parameter set, naming it if it fails

as_sim_draw() reports everything wrong with a simulator's return value and names the simulation it came from. A failure inside the simulator happens before there is a return value, so on its own it arrives as bare as R left it: argument "ls" is missing, with no default, with no index, no parameters, and nothing to suggest that the real problem is a dispatch mismatch rather than a missing default. Under a future plan the call crosses a worker boundary first, which is where a useful traceback goes.

Usage

call_sim_once(call_one, theta_i, i = 1L)

Arguments

call_one

The closure from simulator_caller().

theta_i

One parameter set.

i

Index of the simulation, for the error message.

Value

Whatever the simulator returned.

Details

The original condition is kept as the parent, and its class is carried onto the re-raised error, so a caller catching a condition the simulator signals still catches it.