多元统计分析中的贝叶斯判别，用于主体服从正态分布，且有训练样本时的贝叶斯判别，输出是一个行向量，表示测试样本中每个点所属的类别-Bayesian discrimination Bayesian discriminant multivariate statistical analysis , for the body to follow a normal distribution , and training samples , the output is a row vector indicating the category of each point in the test sample