Fig. 2From: Cluster analysis and its application to healthcare claims data: a study of end-stage renal disease patients who initiated hemodialysisScatter plot by cluster of all-cause medical costs in pre- and post-HD periods by K-means CA with four cluster solutionsa. Footnote: aPseudo F Statistics = 13,979.98; Approximate Expected Over-All R 2 = 0.79; Cubic Clustering Criterion = −63.93. Each cluster is labeled by corresponding numberBack to article page