subploting a simple ode45 predation model in matlab

Here's an example code for subplotting a simple ODE45 predation model in MATLAB:

main.m
% Parameters
a = 0.8;
b = 0.02;
c = 0.4;
d = 0.02;

% Initial conditions
x0 = 80;
y0 = 20;

% Time span
tspan = [0 200];

% Solve ODEs
f = @(t,x) [a*x(1)-b*x(1)*x(2); -c*x(2)+d*x(1)*x(2)];
[t,xy] = ode45(f,tspan,[x0 y0]);

% Plot using subplots
subplot(2,1,1)
plot(t,xy(:,1),'b')
xlabel('Time')
ylabel('Prey')
title('Predation Model')
subplot(2,1,2)
plot(t,xy(:,2),'r')
xlabel('Time')
ylabel('Predator')
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In this code, we first define the parameters and initial conditions for the predator-prey model. Then, we define the time span and the ODE function using anonymous functions. We use ode45 to solve the ODEs and obtain the solution as an array xy of two columns corresponding to the prey and predator populations over time. Finally, we use subplots to plot the prey and predator populations separately, with clear labels and titles.