示例#1
0
def one_run(evaluator, config, frequencies):
    '''
    Performs a single run of the given configuration.  Returns a dictionary
    containing results.

    Parameters:

    - ``evaluator``: An object with the function get_fitness that takes an
      individual and returns its fitness value
    - ``config``: A dictionary containing all of the configuration information
      required to perform a experimental run, including:

      - All information required to initialize an individual.
      - All information required to run ``evolution.generate``.
      - ``verbose``: Boolean value for if extra runtime information should
        be displayed.
      - ``max_evals``: The maximum number of evaluations allowed before
        termination.
      - ``max_fitness``: The fitness required to cause a "successful"
        termination.
    - ``frequencies``:  Dictionary used to return information about how often
      individuals of different lengths are evolved.
    '''
    best = Individual(**config)
    last_improved = -1
    generator = enumerate(generate(config, frequencies))
    for evals, individual in generator:
        individual.fitness = evaluator.get_fitness(individual)
        if best < individual:
            best = individual
            last_improved = evals
            if config['verbose']:
                print '\t', last_improved, best.fitness, len(best.active)
        if (evals >= config['max_evals']
                or best.fitness >= config['max_fitness']):
            break

    if config['verbose']:
        print "Best Found"
        best.show_active()

    return {
        'fitness': best.fitness,
        'evals': evals,
        'success': best.fitness >= config['max_fitness'],
        'phenotype': len(best.active)
    }
示例#2
0
def one_run(evaluator, config, frequencies):
    '''
    Performs a single run of the given configuration.  Returns a dictionary
    containing results.

    Parameters:

    - ``evaluator``: An object with the function get_fitness that takes an
      individual and returns its fitness value
    - ``config``: A dictionary containing all of the configuration information
      required to perform a experimental run, including:

      - All information required to initialize an individual.
      - All information required to run ``evolution.generate``.
      - ``verbose``: Boolean value for if extra runtime information should
        be displayed.
      - ``max_evals``: The maximum number of evaluations allowed before
        termination.
      - ``max_fitness``: The fitness required to cause a "successful"
        termination.
    - ``frequencies``:  Dictionary used to return information about how often
      individuals of different lengths are evolved.
    '''
    best = Individual(**config)
    last_improved = -1
    generator = enumerate(generate(config, frequencies))
    for evals, individual in generator:
        individual.fitness = evaluator.get_fitness(individual)
        if best < individual:
            best = individual
            last_improved = evals
            if config['verbose']:
                print '\t', last_improved, best.fitness, len(best.active)
        if (evals >= config['max_evals'] or
            best.fitness >= config['max_fitness']):
            break

    if config['verbose']:
        print "Best Found"
        best.show_active()

    return {'fitness': best.fitness, 'evals': evals,
            'success': best.fitness >= config['max_fitness'],
            'phenotype': len(best.active)}
示例#3
0
def one_run(evaluator, config):
    '''
    Performs a single run of the given configuration.  Returns a dictionary
    containing results.

    Parameters:

    - ``evaluator``: An object with the function get_fitness that takes an
      individual and returns its fitness value
    - ``config``: A dictionary containing all of the configuration information
      required to perform a experimental run, including:

      - All information required to initialize an individual.
      - All information required to run ``evolution.generate``.
      - ``verbose``: Boolean value for if extra runtime information should
        be displayed.
      - ``max_evals``: The maximum number of evaluations allowed before
        termination.
      - ``max_fitness``: The fitness required to cause a "successful"
        termination.
    '''
    best = Individual(**config)
    output = {}
    for evals, individual in enumerate(generate(config, output)):
        individual.fitness = evaluator.get_fitness(individual)
        if best < individual:
            best = individual
            if config['verbose']:
                print '\t', evals, best.fitness, len(best.active)
        if (evals >= config['max_evals'] or
            best.fitness >= config['max_fitness']):
            break
    if config['verbose']:
        print "Best Found"
        best.show_active()
    output.update({'fitness': best.fitness, 'evals': evals,
                   'success': best.fitness >= config['max_fitness'],
                   'phenotype': len(best.active),
                   # When running 'Skip' this will correctly give the number
                   # of evaluations required by 'Normal'.  Otherwise its junk.
                   'normal': output['skipped'] + evals})
    return output
    control_group = None
    for filename in sys.argv[1:]:
        base = path.basename(filename)
        try:
            # Determine the settings from the filename
            problem, dup, ordering, nodes, mut, seed = base.split('_')
            with open_file_method(filename)(filename, 'r') as f:
                data = json.load(f)
            version = dup, ordering, nodes, mut
            if (dup, ordering) == ('skip', 'normal'):
                control_group = version
            statify[version].append(data[1]['evals'])
            active[version].append(data[1]['phenotype'])
            best = data[1]['bests'][-1]
            test = data[1]['test_inputs']
            individual = Individual.reconstruct_individual(best, test)
            simplified = individual.new(Individual.simplify)
            reduced[version].append(len(simplified.active))
            filecount += 1
        except ValueError:
            print filename, "FAILED"

    # Kruskal's requires a rectangular matrix
    rect = make_rectangular(statify.values(), 10000001)

    print 'Files Successfully Loaded', filecount
    print 'Kruskal Wallis', kruskalwallis(rect)
    for version, data in statify.iteritems():
        print '--------- %s ---------' % str(version)
        print "MES, MAD", median_deviation(data)
        print 'Active', median_deviation(active[version])
示例#5
0
    control_group = None
    for filename in sys.argv[1:]:
        base = path.basename(filename)
        try:
            # Determine the settings from the filename
            problem, dup, ordering, nodes, mut, seed = base.split('_')
            with open_file_method(filename)(filename, 'r') as f:
                data = json.load(f)
            version = dup, ordering, nodes, mut
            if (dup, ordering) == ('skip', 'normal'):
                control_group = version
            statify[version].append(data[1]['evals'])
            active[version].append(data[1]['phenotype'])
            best = data[1]['bests'][-1]
            test = data[1]['test_inputs']
            individual = Individual.reconstruct_individual(best, test)
            simplified = individual.new(Individual.simplify)
            reduced[version].append(len(simplified.active))
            filecount += 1
        except ValueError:
            print(filename, "FAILED")

    # Kruskal's requires a rectangular matrix
    rect = make_rectangular(list(statify.values()), 10000001)

    print('Files Successfully Loaded', filecount)
    print('Kruskal Wallis', kruskalwallis(rect))
    for version, data in statify.items():
        print('--------- %s ---------' % str(version))
        print("MES, MAD", median_deviation(data))
        print('Active', median_deviation(active[version]))