Optimization running. Error running optimization. Undefined function 'Cost_minimization_function' for input arguments of type 'double'.

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Shamir Sheikkariem 2019-9-25

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https://ww2.mathworks.cn/matlabcentral/answers/482035-optimization-running-error-running-optimization-undefined-function-cost_minimization_function-fo

回答： Naveen Venkata Krishnan 2019-10-10

Optimization running.

Error running optimization.

Undefined function 'Cost_minimization_function' for input arguments of type 'double'.

What does this mean

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Alan Weiss 2019-9-25

Please show us the function call that led to this error message.

Alan Weiss

MATLAB mathematical toolbox documentation

Shamir Sheikkariem 2019-9-25

在 MATLAB Online 中打开

%Objective function
function y = Cost_minimization_function(x) y = (x(1))*x(2); end
% Equality linear constraint 
function [c] = costContraints (x)
c = 13000 - (x(1)*x(2));
end
%Initialize optimization
ObjFcn = @Cost_minimization_function;
x0 = [20 5];                              % Initial input value for x1 and x2
nvars = 2;                                % Number of variables
lb = [1 2];                               % Lower bound
ub = [171 5];                             % Upper bound 
ConsFcn = @costContraints;                % Linear constraint function
rng default   
% For reproducibility
[x, fval, exitFlag, Output] = ga(ObjFcn,nvars,lb,ub,ConsFcn)
% Run Genetic Algorithm solver
Error using ga (line 356)
GA requires the following inputs to be of data type double: 'Aeq'.