HAC 层次聚类算法，这个算法建立簇是进过特殊计算的，在合并之后进行评价-The algorithm for building clusters is computationally optimized. After merging the clusters only those matrix elements that are affected by merging are recalculated. The speed is increased in several hundred time

HAC 层次聚类算法，这个算法建立簇是进过特殊计算的，在合并之后进行评价-The algorithm for building clusters is computationally optimized. After merging the clusters only those matrix elements that are affected by merging are recalculated. The speed is increased in several hundred time