predator_prey_ode_test

predator_prey_ode_test, an Octave code which calls predator_prey_ode(), which estimates 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 MIT license

Related Data and Programs:

predator_prey_ode, an Octave code which solves a pair of predator prey ordinary differential equations (ODE's).

Source Code:

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

• euler.m, an Euler ODE solver.
• predator_prey_euler.m, solves the ODE by calling euler.
• predator_prey_euler_plot.png, a plot of the solution.
• predator_prey_euler_phase.png, a phase plot.
• predator_prey_euler_conserved.png, a plot of the conserved quantity over time.

• midpoint_fixed.m, a midpoint ODE solver, using fixed-point interation for nonlinearities.
• predator_prey_midpoint.m, solves the ODE by calling midpoint_fixed.
• predator_prey_midpoint_plot.png, a plot of the solution.
• predator_prey_midpoint_phase.png, a phase plot.
• predator_prey_midpoint_conserved.png, a plot of the conserved quantity over time.

• predator_prey_ode23.m, solves the ODE by calling ode23().
• predator_prey_ode23_plot.png, a plot of the solution.
• predator_prey_ode23_phase.png, a phase plot.
• predator_prey_ode23_conserved.png, a plot of the conserved quantity over time.

• predator_prey_ode45.m, solves the ODE by calling ode45().
• predator_prey_ode45_plot.png, a plot of the solution.
• predator_prey_ode45_phase.png, a phase plot.
• predator_prey_ode45_conserved.png, a plot of the conserved quantity over time.