param_class.py 文件源码

def perturb(self):
        ''' Peturb the list by selecting a random subset of the initial list '''
        # randomly index list elements to be kept
        index = [random.randint(0,1) for r in range(len(self.val_init))]
        # update list and keep list values where index is 1
        self.val_list = list(itertools.compress(self.val_init, index))