The definition of classifiable recognition rate is given according to the minimum angle of the sample vectors, and then the all samples are selected to obtain the samples which are easy to classify.

• 根据样本向量最小夹角给出了可分类识别率的定义，且应用样本向量间的夹角对样本向量进行筛选，获得了更有利于分类的样本。