Clear Filters
Clear Filters

Failure in initial objective function evaluation when I'm solving a linear programming.

1 view (last 30 days)
I'm solving this question above and my code is below:
This is my coding in first file
function z= myobj01(x)
x= -3*x(1)-4*x(2);
end
And this is my coding in second file
fun= @myobj01;
x0=[0,1];
A=[1 1; 1 2; 0 1];
b=[6;8;3];
Aeq=[]; beq=[];
lb=[0,0]; ub=[];
[x,fval]=fmincon(fun,x0,A,b,Aeq,beq,lb,ub)
The problem is occuring in my second coding
It shows
Output argument "z" (and maybe others) not assigned during call to "myobj01".
Error in fmincon (line 535)
initVals.f = feval(funfcn{3},X,varargin{:});
Error in myobj02 (line 8)
[x,fval]=fmincon(fun,x0,A,b,Aeq,beq,lb,ub)
Caused by:
Failure in initial objective function evaluation. FMINCON cannot continue.
When I run the second coding.
May I ask, where's the problem?

Accepted Answer

Stephan
Stephan on 25 Jun 2021
Use:
function z= myobj01(x)
z= -3*x(1)-4*x(2);
end

More Answers (0)

Categories

Find more on Systems of Nonlinear Equations in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!