Individual of 2 trees

[Ozéas Carvalho]

Greetings,

I'm starting with DEAP and I need to create an individual of 2 trees with different sets. Each tree controls cooperative agents with different roles in a simulation. They are evaluated together.

How can I achieve that?

After some research, I came up with the following.

Given agent1_set and agent2_set:

creator.create("FitnessMax", base.Fitness, weights=(1,))

creator.create("Individual", tuple, fitness=creator.FitnessMax)

toolbox.register("agent1_tree", gp.genHalfAndHalf, pset=agent1_set, min_=5, max_=10)

toolbox.register("agent2_tree", gp.genHalfAndHalf, pset=agent2_set, min_=10, max_=20)

Now I'm not sure how to initialize them as an Individual.

For evaluation and recombination, I know that I just need to wrap the functions, since the first tree doesn't recombine with the second one.

Any help is appreciated,

[François-Michel De Rainville]

Have you tried to create a function that uses the two operators defined in the toolbox and returns a tuple of trees?

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[Ozéas Carvalho]

I see. I will try that then.

Many thanks,

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Ozéas Carvalho