> How can I invert the fitness? I have to do this in my fitness function? 

Well you can do it in your fitness-function or when you set the fitness. 
For example:


value = minor;
MyFitness f = ((MyFitness) ind).fitness;
f.setFitness(state, (float) Float.MAX_VALUE - minor);

I don't know how your fitness-function looks like. If your function always take the highest one, it should work with my approach.


Greetings

Bojan



----- Ursprüngliche Mail -----
Von: "André Pinz Borges" <[log in to unmask]>
An: [log in to unmask]
Gesendet: Montag, 15. Juli 2013 14:49:50
Betreff: Re: How to select individual with minor fitness



Thanks Bojan for your answer... 

How can I invert the fitness? I have to do this in my fitness function? 






On Mon, Jul 15, 2013 at 9:16 AM, Bojan Janisch < [log in to unmask] > wrote: 


Hey Andre, 

why don't you just invert your fitness? 


fitness best individual of generation 1: 5 
fitness best individual of generation 2: 6 
fitness best individual of generation 3: 4 
fitness best individual of generation 4: 8 

to 

fitness best individual of generation 1: infinite - 5 
fitness best individual of generation 2: infinite - 6 
fitness best individual of generation 3: infinite - 4 
fitness best individual of generation 4: infinite - 8 

Now your max should be generation 3 because 4 is the lowest score. 

minor and major can be easy inverted. 

Greetings 

Bojan 


----- Ursprüngliche Mail ----- 
Von: "André Pinz Borges" < [log in to unmask] > 
An: [log in to unmask] 
Gesendet: Montag, 15. Juli 2013 14:03:59 
Betreff: Re: How to select individual with minor fitness 







Normally the algorithm selects the individual with major value of fitness, for the example above will be selected the individual of generation 4: 
fitness best individual of generation 1: 5 
fitness best individual of generation 2: 6 
fitness best individual of generation 3: 4 
fitness best individual of generation 4: 8 

but I want to select the individual that has the mijor/less value of fitness (in the case of example, the generation 3). 

Thanks 








On Mon, Jul 15, 2013 at 4:03 AM, Sean Luke < [log in to unmask] > wrote: 


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!