12.1 Topics Covered

  • Understand the difference between internal and external validation measures
  • Interpret measures of fit
  • Assess cluster balance by means of entropy and Simpson’s index
  • Assess cluster contiguity structure by means of the join count ratio
  • Measure the compactness of spatially constrained clusters by means of the isoperimeter quotient
  • Assess the cluster connectedness by means of the graph diameter
  • Compare different clusterings by means of the Adjusted Rand index (ARI) and the Normalized Information Distance (NID)
  • Visualize the spatial overlap between clusters by means of linked cluster maps
  • Interpret a cluster match map to compare the spatial pattern in two clusterings
GeoDa Functions
  • Clusters > Validation
  • Clusters > Cluster Match Map
Clusters > Cluster Match Map | Make Spatial | Validation

Figure 12.1: Clusters > Cluster Match Map | Make Spatial | Validation