I'm sorry, I don't know what you mean by "minor" and "major" fitnesses. Sean On Jul 14, 2013, at 10:27 PM, André Pinz Borges wrote: > Hello, > > I implemented tutorial 3, but I would like to select the individual with minor value of fitness and the tutorial selects the individual with major fitness. > > How can I do this?? I look at source code, but I don't find how.. > > Thanks!