## ECJ-INTEREST-L@LISTSERV.GMU.EDU

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 Subject: Re: How to select individual with minor fitness From: André Pinz Borges <[log in to unmask]> Reply To: ECJ Evolutionary Computation Toolkit <[log in to unmask]> Date: Mon, 15 Jul 2013 09:49:50 -0300 Content-Type: multipart/alternative Parts/Attachments: text/plain (1941 bytes) , text/html (2769 bytes)
```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!
>

```