INNER CODE UNIT · Python

get_best

joeddav/devol · devol/devol.py:274

    def get_best(self, n):
        combined = [(self.members[i], self.scores[i])
                    for i in range(len(self.members))]
        sorted(combined, key=(lambda x: x[1]), reverse=True)
        return [x[0] for x in combined[:n]]

    def select(self):
        dart = rand.uniform(0, self.s_fit)
        sum_fits = 0
        for i in range(len(self.members)):
            sum_fits += self.scores[i]
            if sum_fits >= dart:
                return self.members[i]

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