1. I would suggest subclass the Individual class. YourIndividual class stores a number indicating number of trees, and ofc, bunch of trees. 2. 3. I believe you need to write your own crossover for that purpose. And you can do so. You should be able to find good clues in subclasses of BreedingPipeline. http://cs.gmu.edu/~eclab/projects/ecj/docs/classdocs/index.html. On Thu, Feb 20, 2014 at 9:40 AM, Emre AYDOĞAN < [log in to unmask]> wrote: > Hi, I want to ask some questions about genetic programming. > > Firstly, (1)Can each Individual classes separately hold trees in different > number? > So, first Individual holds 3 trees, second Individual holds 6 trees, ..., > thirtieth > Individual holds 10 trees and etc. Is this possible? > > if this is possible, in default crossover class, for example (2)will the > crossover > be between first Individual's first tree and thirtieth Individual's first > tree? or > (3)can the crossover be first Individual's third tree and thirtieth > Individual's sixth > tree? > > if the default crossover class can't do like this, can i manually write my > own > Crossover class that do crossover like i said in (3) questions? > > Thanks. >