Chapter 7
Cluster Analysis
Hierarchical Clustering
Using Clusters in Regression
K-means Clustering
K-means versus Hierarchical Clustering
References
Exercises
Figure 7.1 A Framework for Multivariate Analysis
Cluster analysis is an exploratory multivariate technique designed to uncover natural groupings of the rows in a data set. If data are two-dimensional, it can be very easy to find groups that exist in the data; a scatterplot will suffice. When data have three, four, or more dimensions, how to find groups is not immediately obvious. As shown ...