中文说明：用MATLAB开发的OLDA源代码，正交LDA见模式识别字母。输入：X表示数据矩阵，每列表示一个数据点，ClassNumber是类的数目，Xlabel是X的标签，是列向量。
English Description：
OLDA source code developed using MATLAB, orthogonal LDA See Pattern recognition Letter. input: X denotes data matrix and each column denotes a data point, ClassNumber is the number of the classes and Xlabel is the label of X and is a colunm vector.