def from_sizes(self):
        train_neg = pd.Index(np.random.choice(self.negatives, self.neg_train, replace=True))
        test_neg = pd.Index(np.random.choice(train_neg - self.negatives, self.neg_test, replace=True))
        train_pos = pd.Index(np.random.choice(self.positives, self.pos_train, replace=True))
        test_pos = pd.Index(np.random.choice(self.positives - train_pos, self.pos_test, replace=True))
        return train_neg, test_neg, train_pos, test_pos
dataset/ETHPy150Open kvh/ramp/ramp/folds.py/BootstrapFolds.from_sizes/swapped operands of `-`