For loop in function

I tried to create a function with a for loop inside. When I try to use this function with the function handle some errors occur (when I just type it in the command window it works). But no matter what I try the error: Not enough input arguments always stays.

 function y = fun_BSB(x,c_CSB_KA,c_AFS_KA,i_CSB_oTS)
 for j=1:32
 y(j)=0.625*(c_CSB_KA(j)-c_AFS_KA(j)*i_CSB_oTS(j)*x(1)*(1-x(2))-c_CSB_KA(j)*x(3));
 end
 end

Next Script:

 fun=@fun_BSB;
 x0=[0.02,0.02,0.035];
 weight = abs(c_BSB5_KA);
 for k=1:length(c_BSB5_KA)
    [x,fval] = fgoalattain(fun,x0,c_BSB5_KA(k),weight(k));
    ak(k,1:3)=x;
end

I know that there are probably many other mistakes in my script but could anybody help me with the error "Not enough input arguments"?

 Not enough input arguments.
 Error in fun_BSB (line 4)
 y(j)=0.625*(c_CSB_KA(j)-c_AFS_KA(j)*i_CSB_oTS(j)*x(1)*(1-x(2))-c_CSB_KA(j)*x(3));

...some other errors...

 Caused by:
    Failure in initial objective function evaluation.
    Optimization cannot continue.

Thank you for your help!

Answer 1

[Walter Roberson]

http://www.mathworks.com/help/matlab/math/parameterizing-functions.html

[Judith Lange]

Thank you very much. This link really helped me and even I understood it. Now I am going to fix the other problems :D