INNER CODE UNIT · Python

__init__

joeddav/devol · devol/devol.py:261

    def __init__(self, members, fitnesses, score, obj='max'):
        self.members = members
        scores = fitnesses - fitnesses.min()
        if scores.max() > 0:
            scores /= scores.max()
        if obj == 'min':
            scores = 1 - scores
        if score:
            self.scores = score(scores)
        else:
            self.scores = scores
        self.s_fit = sum(self.scores)

    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]]

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