silhouette_index

Versión 1.1.0 (1,68 KB) por Ludmila Kuncheva
This code calculates the Silhouette cluster validity index . It can be used to determine the optimal number of clusters.
0.0
(0)
68 Descargas
Actualizado 15 mar 2024

Ver licencia

The Silhouette index is an internal cluster validity index, which measures the quality of a partition. [Reference: P. J. Rousseeuw (1987). "Silhouettes: A Graphical Aid to the Interpretation and Validation of Cluster Analysis". Computational and Applied Mathematics. 20: 53–65. doi:10.1016/0377-0427(87)90125-7].
The Silhouette index varies between -1 and 1. Higher values signify a better partition.
See also https://en.wikipedia.org/wiki/Silhouette_(clustering)

Citar como

Ludmila Kuncheva (2025). silhouette_index (https://la.mathworks.com/matlabcentral/fileexchange/128654-silhouette_index), MATLAB Central File Exchange. Recuperado .

Compatibilidad con la versión de MATLAB
Se creó con R2023a
Compatible con cualquier versión
Compatibilidad con las plataformas
Windows macOS Linux
Etiquetas Añadir etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Versión Publicado Notas de la versión
1.1.0

The revised code guards against all cluster labels being the same. It returns index value -1 in this case. It also eliminates the problem of 1-element clusters.
1.0.0