MATLAB: LP optimization error for the objective function

linear optimization

Hi all,
I am trying to run an LP optimization. My objective function is
f= @(x) 3*x(1:N)-2*x(N+1:2*N)-5*x(2*N+1:3*N)-3*x(3*N+1:4*N);
where N=5 and I get the error like that:
"LINPROG requires the following inputs to be of data type double: 'f'"
do you have any idea how to solve it?
I've seen other people mentioning this error but I don't get how could work in my case
thanks in advance
Nikolas

Best Answer

ee=ones(1,N);
f=[3*ee,-2*ee,-5*ee,-3*ee ];