Example code for fmincon error.
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Hello, everyone. I was tryint to get the idea of using the function fmincon earlier. But when I run the example code in the hlep document, it seems that it doesn't work. the code:
function f = myfun(x)
f = -x(1) * x(2) * x(3);
= [-1 -2 -2; ...
1 2 2];
b = [0;72];
x0 = [10;10;10]; % Starting guess at the solution
[x,fval] = fmincon(@myfun,x0,A,b);
According to the hlep, a solution to the optimize problem should be given. But when I copied the code into a new script and run it, I got the error:
>> myfun
Error using myfun (line 2)
Not enough input arguments.
what does this means here, can anybody please explain this to me?
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采纳的回答
Shashank Prasanna
2013-2-23
is you objective function, you shouldn't run that. Create the definition of myfun into a separate file called myfun.m:
function f = myfun(x)
f = -x(1) * x(2) * x(3);
= [-1 -2 -2; ...
1 2 2];
And the rest of the code into a different script for example run_fmincon.m:
b = [0;72];
x0 = [10;10;10]; % Starting guess at the solution
[x,fval] = fmincon(@myfun,x0,A,b);
>> run_fmincon
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