构造函数 :param data_matrix: 训练数据集矩阵 :param label_matrix: 训练数据标签矩阵 :param sigma: 高斯核函数的sigma :param C: 惩罚参数 :param toler: 松弛变量
(self, data_matrix, label_matrix, sigma, C, toler, iteration)
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