Fitness function with more than "x" as an input?

I would like to be able to send a data set to my fitness function using the genetic algorithm in the global optimization tool box. Currently I can get this to work as fitness function using the optimization tool:

function ret = func_opt(x)
   load('mydata.mat');
   ....
end

but I would like to do this instead

function ret = func_opt(x,mydata)
    ...
end

I looking for how this would need to be setup in the optimization tool or with a script. Thank You!

Answer 1

[Walter Roberson]

http://www.mathworks.com/help/optim/ug/passing-extra-parameters.html