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SILHOUETTE: Stata module to calculate and graph silhouette width for cluster analysis

Author

Listed:
  • Brendan Halpin

    (University of Limerick, Ireland)

Programming Language

Stata

Abstract

silhouette calculates and graphs the silhouette width for the cluster solution given by the grouping variable, using the pairwise distance matrix given in the distmat option. Silhouette width is an indicator of cluster adequacy. It compares for each case, the mean distance to other cases in the cluster in which the case is, and the mean distance to the nearest neighbour cluster. Silhouette widths less than zero indicate a case that fits poorly in its cluster.

Suggested Citation

  • Brendan Halpin, 2016. "SILHOUETTE: Stata module to calculate and graph silhouette width for cluster analysis," Statistical Software Components S458165, Boston College Department of Economics, revised 27 Jun 2016.
    • Handle: RePEc:boc:bocode:s458165
    Note: This module should be installed from within Stata by typing "ssc install silhouette". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/s/silhouette.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/s/silhouette.sthlp
    File Function: help file
    Download Restriction: no
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