You'll need to make three basic items:

- An Individual class of some sort
- A Species for the Individual
- Appropriate breeding pipelines

What I would do is subclass from GPIndividual and add in relevant parts from (say) IntegerVectorIndividual.  But you'll have to do a fair bit of rewriring.  This is not going to be easy for someone who's not a java expert, I'm afraid to say.  :-(  I'd try to whip one up for you but I have my hands full right now with family.  Anyone else?

On Nov 22, 2011, at 2:57 PM, Frederik wrote:

> My goal (just as Ben I think) is indeed to evolve individuals that are part-tree and 
> part-vector. The problem is that I'm not a java expert and I don't really see 
> where to start. The main issue will be to create a new breeding class, is that 
> correct?
> Regards,
> Frederik