3.4 Ending a simulation

We can explicitly end a simulation using the command sim.simulationFinished().

10000 late()
{
  sim.simulationFinished();
}

This simply ends the simulation. Typically, we want to output something for the user. We’ll go into more options throughout the course. For now, know that we can output a sample of our population using the following syntax:

10000 late()
{
  p1.outputSample(500);
}

where 500 is the number of individuals to output from population p1. This outputs a lot of information that is typically sent to a downstream application.

A simpler output is to use the function sim.outputFixedMutations(), which outputs a list of all mutations that have reached fixation (are present in two copies in all individuals).

10000 late()
{
  sim.outputFixedMutations();
}