SCHC

SCHC (Spatially constrained hierarchical clustering). It is a special form of constrained clustering, where the constraint is based on contiguity (common borders). The method builds up the clusters using agglomerative hierarchical clustering methods: single linkage, complete linkage, average linkage, and Ward’s method (a special form of centroid linkage). Meanwhile, it also maintains the spatial contiguity when merging two clusters. The method builds up the clusters using agglomerative hierarchical clustering methods:

• Single
• Complete
• Average
• Ward

The node is based on the package pygeoda and here are related tools and references:

• Spatial Clustering
• SCHC
• Spatially Constrained Clustering - Hierarchical Methods

Input ports

1. Type: Table
   Geodata table

   Geodata for spatial clustering implementation.

Output ports

1. Type: Table
   Output Table

   Output table with cluster tag.