Applies to:
StatTools 7.x and Up

 

StatTools Cluster Analysis

 

StatTools performs Hierarchical Agglomerative Clustering (HAC):

• Starts with each object as its own cluster.

• Clusters are merged sequentially based on similarity:

Linkage Methods (Agglomerative Method):

• Single (Nearest)
• Complete (Farthest)
• Average
• Centroid
• Median
• Ward

Distance Metrics:

• Observations:

  • Euclidean

  • Squared Euclidean

  • Mahalanobis

  • Manhattan

• Variables:

  • Correlation

  • Absolute Correlation

The metric and linkage choice affects the final clusters

Try different methods if unsure.

 

 

Attachments:
KB1628_DistanceMeasures.docx