fd_predator_prey_test

fd_predator_prey_test, a MATLAB program which calls fd_predator_prey to apply the finite difference method to estimate solutions of a pair of ordinary differential equations that model the behavior of a pair of predator and prey populations.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

fd_predator_prey, a MATLAB program which applies the finite difference method (FDM) to a predator-prey system with time dependence and no spatial variation.

Source Code:

• fd_predator_prey_test.m, calls all the tests.
• fd_predator_prey_test.sh, runs all the tests.
• fd_predator_prey_test.txt, the output file.

PP_100 uses 100 timesteps, which are not enough.

• pp_100.txt, the data.
• pp_100_time.png, a time plot.
• pp_100_phase.png, a phase plot.

pp_1000 uses 1000 timesteps, which are enough to see that there is a pattern, but not enough to catch the pattern accurately.

• pp_1000.txt, the data.
• pp_1000_time.png, a time plot.
• pp_1000_phase.png, a phase plot.

pp_10000 uses 10000 timesteps, which are enough.

• pp_10000.txt, the data.
• pp_10000_time.png, a time plot.
• pp_10000_phase.png, a phase plot.