可以广泛的应用于数据预测及数据分析,计算晶粒的生长，入门级别程序,包含特征值与特征向量的提取、训练样本以及最后的识别。- Can be widely used in data analysis and forecast data, Calculation of growth, entry-level program grains Contains the eigenvalue and eigenvector extraction, the training sample, and the fin