How does the Cluster Silhouette Calculator work?

s(i) = (b(i) - a(i)) / max(a(i), b(i)) Then: a(i) = average distance to points in same cluster Then: b(i) = average distance to points in nearest other cluster Then: Range -1 to 1; >0.5 good clustering.

Can you give an example of how to use the Cluster Silhouette Calculator?

Example: Input Cluster assignments gives a result of Silhouette score.

Is the Cluster Silhouette Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Cluster Silhouette Calculator?

Our Cluster Silhouette Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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Cluster Silhouette Calculator

Silhouette Score

Intra-cluster distance (a)

Inter-cluster distance (b)

Calculates silhouette coefficient measuring cluster quality and cohesion.

Difficulty:advanced

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Did You Know?

Silhouette coefficient often used for elbow method; high silhouette guides cluster number.

References

›Silhouette Coefficient

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Cluster Silhouette Calculator

Silhouette Score

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