Hierarchical clustering (Hierarchical clustering)

1. Introduction Hierarchical clustering algorithm

 Hierarchical clustering is a collection of hierarchically decompose a given data object, based on a hierarchical decomposition decomposition strategy adopted, hierarchical clustering can be divided into condensation (agglomerative, that is, from top to bottom) and split ( divisive, that is, from bottom to top) hierarchical clustering.

It can be a little results to show up in the form of a tree map, so the researchers divided into clusters according to their own needs;

 

 

2. Sample Code