包含特征值与特征向量的提取、训练样本以及最后的识别，本程序的性能已经达到较高水平，可以实现模式识别领域的数据的分类及回归。- Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, The performance of the program has reached a high level, You can achieve data classification and regression pattern recognition.