Cross Validated is a question and answer site for people interested in statistics, machine learning, data analysis, data mining, and data visualization. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

While drawing graphs that compare the silhouette measure of different clustering algorithms, what unit should I specify for the silhouette width?

share|improve this question

Don't use the Silhouette measure for arbitrary clustering algorithms. In particular, don't use it for clustering algorithms which can produce non-convex clusters.

On data sets such as this:

the silhouette may be misleading.

The silhouette coefficient and silhouette plots are meant to compare different results of the same, convex, clustering algorithm (e.g. k-means).

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.