fmincon error: Failure in initial user-supplied objective function evaluation. FMINCON cannot continue.
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi,
I am a beginner using Matlab and trying to solve a constrained nonlinear optimization problem. I got the followings error msg:
??? Error using ==> @(x)SqErr1(x)+SqErr2(x)
Too many input arguments.
Error in ==> fmincon at 517
initVals.f = funfcn{3}(X,varargin{:});
Caused by: Failure in initial user-supplied objective function evaluation. FMINCON cannot continue.
But if I try to compute the objective function directly with a feasible x0, Matlab always returns a correct scalar answer. I am really confused... Could you please help me with it? Thank you.
Below is my code, the objective function is a bit complicated...
for i=1:12
fhNames{i}=['DeltaEu',num2str(i)];
fhNames2{i}=['DeltaEu2',num2str(i)];
end
fhArray=cellfun(@str2func, fhNames, 'UniformOutput',false);
fhArray2=cellfun(@str2func, fhNames2, 'UniformOutput',false);
Eu=@(x,s) (exp(-x(2)*i)/x(1)*mean((s(:,1).^x(3)-s(:,2)).^x(1)-(s(:,1).^x(3)-...
s(:,3)).^x(1)));
for i=1:12
fhArray{i}=@(x) Eu(x,S{i}(:,1:3));
fhArray2{i}=@(x) Eu(x,S{i}(:,[1,3,4]));
end
SqErr1=@(x) (fhArray{1}(x)+fhArray{2}(x)+fhArray{3}(x)+fhArray{4}(x)+...
fhArray{5}(x)+fhArray{6}(x)+fhArray{7}(x)+fhArray{8}(x)+...
fhArray{9}(x)+fhArray{11}(x)+fhArray{10}(x)+fhArray{12}(x))^2;
SqErr2=@(x) (fhArray2{1}(x)+fhArray2{2}(x)+fhArray2{3}(x)+fhArray2{4}(x)+...
fhArray2{5}(x)+fhArray2{6}(x)+fhArray2{7}(x)+fhArray2{8}(x)+...
fhArray2{9}(x)+fhArray2{11}(x)+fhArray2{10}(x)+fhArray2{12}(x))^2;
ObjFun=@(x) SqErr1(x)+SqErr2(x);
nonlcon=@(x) PositiveCon(x,MaxCost,MinVol');
function [c, ceq]=PositiveCon(x, MaxCost, MinVol)
c = MaxCost-MinVol.^x(3);
ceq = [];
end
[x, fval, exit, output]=fmincon(ObjFun, x0, [], [], [], [],lb, ub,[],...
nonlcon, optimset('FunValCheck','on'));
0 commentaires
Réponse acceptée
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Solver Outputs and Iterative Display dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!