Choosing k: Within-Cluster Sum of Squares and the Elbow
This lesson is part of the course
In this lesson
You measure how tight the best k = 3 solution is (WCSS), compare k = 1 to 8 and draw the elbow chart that tells you how many segments to keep.
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Lessons in this course
- Recency, Frequency and Monetary from a Raw Order Log Locked
- Quintile Scores: PERCENTILE Cut-offs and PERCENTRANK Locked
- From Scores to Segments: Champions, At Risk & Co. Locked
- Segment Size vs Revenue Share Locked
- Standardising Variables with z-Scores Locked
- k-Means on RFM: One Iteration by Hand Locked
- Choosing k: Within-Cluster Sum of Squares and the Elbow Locked
- Segment Profiles and Targeted Campaign Economics Locked