FMINUNC cannot continue help?
显示 更早的评论
I am trying to learn how to use fminunc, but it gives the error "Failure in initial objective function evaluation. FMINUNC cannot continue."
Help please?
Note: Updated
for i = 1:modes
params.x0 = [y0 dy0];
params.xp = xspan;
fobj = @(beta)myobj(beta, params);
for j = 1:1000 % begin convergence loop for beta
beta = fminunc(fobj, beta0); % run optimization
end % end convergence loop
end
%%
function [err, T, Y] = myobj(beta)
x0 = params.x0;
xspan = params.xp;
[T,Y] = ode45('ffunc', xspan, x0);
err = abs(Y(end,2) + sqrt(K*L.^2 - beta)*Y(end,1)); % error
end
采纳的回答
You forgot to pass your params,
fobj = @(beta)myobj(beta,params);
function [err, T, Y] = myobj(beta,params)
x0 = params.x0;
xspan = params.xp;
[T,Y] = ode('ffunc', xspan, x0);
err = abs(Y(end,2) + sqrt(K*L.^2 - beta)*Y(end,1)); % error
end
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Optimization 的更多信息
产品
Translated by 
