Class: SteadyState

Inherits:
AlgorithmBase show all
Includes:
Breed
Defined in:
../algorithm/steady_state.rb

Instance Attribute Summary

Attributes included from Breed

#inject

Attributes inherited from AlgorithmBase

#init, #population_size, #probabilities, #termination

Instance Method Summary (collapse)

Methods inherited from AlgorithmBase

#finished?, #teardown

Instance Method Details

- (Object) setup(config) 



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# File '../algorithm/steady_state.rb', line 9

def setup config
  super

  @replacement = @cfg['replacement_rank'].nil? ? 
               @cfg.factory('replacement') : 
               @cfg.factory('replacement', @cfg.factory('replacement_rank') ) 

  @population = load_or_init( @store, @population_size )  

  @report.next   
  return @report    
end

- (Object) step 



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# File '../algorithm/steady_state.rb', line 22

def step
  @report.next    
  @report << "--------- step #{@steps += 1}"
  @report.report @population

  @cross, @injections, @mutate = 0, 0, 0  
  @population_size.times do
    @selection.population = @population
    
    individual = breed_individual @selection 

    bad = @replacement.select_one @population
    @population.delete bad
    @population << individual
  end

  @report['numof_crossovers'] << @cross   
  @report['numof_injections'] << @injections
  @report['numof_mutations'] << @mutate
 
  return @report
end