Add default solverSource:
Specify that the best solver currently available should be used to solve a conservation planning problem.
arguments passed to the solver.
problem() object with the solver added to it.
Ranked from best to worst, the available solvers that can be used are:
add_lpsymphony_solver(), and finally
For information on the performance of different solvers,
please see Schuster et al. (2020).
Schuster R, Hanson JO, Strimas-Mackey M, and Bennett JR (2020). Exact integer linear programming solvers outperform simulated annealing for solving conservation planning problems. PeerJ, 8: e9258.