Access the population during GA evolution

[ropinotex]

Is it possible to access the current population at the end of each iteration, for example by using the callbacks (or any other feasible way)?

Say, I want to check the population at the end of each iteration, and adding new individuals if some conditions are satisfied.

[jonathanfischer97]

Yes, but you would have define a trace! overload that saves a reference to your state.population in order to expose it to a callback for manipulation. The callback takes a trace record as input.