def ChooseBestIndividal(self):
phenotype = Phenotype(self.bodySize)
indexBest = -1
adaptationBest = 0.0
for i in range(self.muValue):
phenotype.UseGenotype(self.population[i])
if phenotype.GetAdaptation() > adaptationBest:
indexBest = i
adaptationBest = phenotype.GetAdaptation()
self.lastAdaptationValue = self.currentAdaptationValue
self.currentAdaptationValue = adaptationBest
print("#" + str(self.lastAdaptationValuesBelowDelta) +
"\tCurrent best: " + str(adaptationBest))
self.view.UpdateData(self.population[indexBest])
def CreateRouletteWheel(self, individualsToChoose):
sum = 0.0
adaptationValue = []
for i in range(len(individualsToChoose)):
phenotype = Phenotype(self.bodySize)
phenotype.UseGenotype(individualsToChoose[i])
adaptation = phenotype.GetAdaptation()
adaptationValue.append(math.exp(adaptation))
sum += math.exp(adaptation)
rouletteWheel = []
for i in range(len(individualsToChoose)):
rouletteWheel.append(adaptationValue[i] / sum)
for i in range(1, len(individualsToChoose)):
rouletteWheel[i] += rouletteWheel[i - 1]
return rouletteWheel
