Package Bio :: Package GA :: Package Crossover :: Module General :: Class SafeFitnessCrossover
[show private | hide private]
[frames | no frames]

Class SafeFitnessCrossover


Perform crossovers, but do not allow decreases in organism fitness.

This doesn't actually do any crossover work, but instead relies on another class to do the crossover and just checks that newly created organisms do not have less fitness. This is useful for cases where crossovers can
Method Summary
  __init__(self, actual_crossover, accept_less)
Initialize to do safe crossovers.
  do_crossover(self, org_1, org_2)
Perform a safe crossover between the two organism.

Method Details

__init__(self, actual_crossover, accept_less=0.0)
(Constructor)

Initialize to do safe crossovers.

Arguments:

o actual_crossover - A Crossover class which actually implements crossover functionality.

o accept_less - A probability to accept crossovers which generate less fitness. This allows you to accept some crossovers which reduce fitness, but not all of them.

do_crossover(self, org_1, org_2)

Perform a safe crossover between the two organism.

Generated by Epydoc 2.1 on Mon Aug 27 16:43:50 2007 http://epydoc.sf.net