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## 2.2.6 Particle
import random
from deap import base
from deap import creator
from deap import tools
creator.create("FitnessMax", base.Fitness, weights=(1.0, 1.0))
creator.create("Particle", list, fitness=creator.FitnessMax, speed=None,
smin=None, smax=None, best=None)
creator.create("Swarm", list, gbest=None, gbestfit=creator.FitnessMax)
def initParticle(pcls, size, pmin, pmax, smin, smax):
part = pcls(random.uniform(pmin, pmax) for _ in xrange(size))
part.speed = [random.uniform(smin, smax) for _ in xrange(size)]
part.smin = smin
part.smax = smax
return part
toolbox = base.Toolbox()
toolbox.register("particle", initParticle, creator.Particle, size=2,
pmin=-6, pmax=6, smin=-3, smax=3)
toolbox.register("swarm", tools.initRepeat, creator.Swarm, toolbox.particle)
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