"genetic algorithm for rule induction"

rida_007

Hello Rapid users
I want to create a model for rule induction using genetic algorithm  ???
my fitness fonction is F = comp * simp where comp and simp are to parametre based on a matrix confusion (true positive, fals negative, false positive and false negative)

my question is : how i can change my attributes to a binary code (bits ) for genetic algorithm use
how i can inser (optimisation operator) in rapidminer with my rule induction operator ??

i am lost

thanks in advance