MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn moreOpportunities for recent engineering grads.

Apply Today**New to MATLAB?**

Asked by Fred
on 14 Oct 2012

Hello, I have a function as this:

function l=L2(u1, u2, w, x) l = -sum(log(((log(u1).*log(u2)).^(-1+x)).*((w.^((2-2*x)/x))-(1-x.*(w.^(1-2*x)/2)))./(u1.*u2.*exp(w.^(1/x))))); end

which u1, u2, w are 40*1 vectors, and I want to optimize this for min of x with optimtool but his gives me the error of

Error in the following problem input(s): objective: Not enough input arguments.

Can anybody help me?

Answer by Alan Weiss
on 15 Oct 2012

Accepted answer

Your question might be about how to include extra parameters. See this link.

Alan Weiss

MATLAB mathematical toolbox documentation

Matt Tearle
on 15 Oct 2012

u1 = ... u2 = ... w = ... objfun = @(x) L2(u1,u2,w,x) % define a function of x with u1, u2, w fixed

Now use `objfun` as your objective function.

## 1 Comment

## Matt J (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/50798#comment_105101

Show more code, in particular, the solver that you're using and the code you use to call it.

Also, use markup to make the code you post more readable, including the code in your Question.