what's wrong my code about ode model

I had to training course 'solve ordinary differential equation in MATLAB online course'

and I wrote that one but this code doesn't run

how can I modify that??

The first error has line 3 ' C=Y(1)'

function dY=ESdynamics(t,Y,r_C,Cprime,r_max,k,r_A,delta_A,r_I,delta_I,r_E,Eprime,r_S,Sprime,beta,gamma)

C=Y(1);
A=Y(2);
I=Y(3);
E=Y(4);
S=Y(5);

f(C)=min(r_C*(1-C/Cprime),r_max);

dC=f(C)*C-k*C*E;
dA=r_A*C-delta_A*A;
dI=r_I*C*E-delta_I*I;
dE=-r_E*(E-Eprime)+beta*A*I*E*S-gamma*E*S;
dS=-r_S*(S-Sprime)-beta*A*I*E*S+gamma*E*S;

end

[Dyuman Joshi]

Please copy and paste the full error code, that means all of the red text. Also attach the values used to call the function.

You have not defined the output "dY" in your code.

[기훈 강]

thanks

[Walter Roberson]

Note that ode45 and related functions will produce incorrect answers when min() or max() are used.