optimizing antennas

I am working on building genetic algorithms for opimizing antennas parameters,especially microstrip antennas.

I have used toolbox delivered via Internet for connecting HFSS-electromagnetic solver and GAs optimizer in Matlab to do my work.However,when I did it,I have faced trouble that the results in each iteration have not been updated even though the script which has been created for analysis in HFSS has changed.

Does anybody experience similar problem?I used functions to exportdata,rundata from toolbox mentioned above

I also want to learn about it, please some one hlp us.

I think its limitation of MATLAB, try creating another m file