silhouette_index

Versione 1.1.0 (1,68 KB) da Ludmila Kuncheva
This code calculates the Silhouette cluster validity index . It can be used to determine the optimal number of clusters.
0.0
(0)
60 download
Aggiornato 15 mar 2024

Visualizza la licenza

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)

Cita come

Ludmila Kuncheva (2024). silhouette_index (https://www.mathworks.com/matlabcentral/fileexchange/128654-silhouette_index), MATLAB Central File Exchange. Recuperato .

Compatibilità della release di MATLAB
Creato con R2023a
Compatibile con qualsiasi release
Compatibilità della piattaforma
Windows macOS Linux
Tag Aggiungi tag

Community Treasure Hunt

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

Start Hunting!

Versione Pubblicato Note della release
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