Psychometrika

, Volume 42, Issue 3, pp 429–431 | Cite as

The equivalence of three statistical packages for performing hierarchical cluster analysis

  • Roger Blashfield
Notes And Comments

Abstract

Three different software programs which contain hierarchical agglomerative cluster analysis procedures were shown to generate different solutions on the same data set using apparently the same options. The basis for the differences in the solutions was the formulae used to calculate Euclidean distance. Users of statistical software were warned of terminological confusion concerning cluster analysis.

Keywords

Cluster Analysis Euclidean Distance Public Policy Analysis Procedure Hierarchical Cluster 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Blashfield, R. Graduate admissions: A case study of department of psychology.JSAS Catalog of Selected Documents in Psychology, 1975,5, 225.Google Scholar
  2. Cattell, R. B. (Ed.)Handbook of multivariate experimental psychology. Chicago: Rand-McNally, 1966.Google Scholar
  3. Dixon, W. J. (Ed.)BMDP: Biomedical computer programs. Berkeley: University of California Press, 1975. (Procedure BMDPIM was written 7 October 1974.)Google Scholar
  4. Hays, W. F.Statistics for the social sciences (2nd ed.). New York: Holt, Rinehart and Winston, 1973.Google Scholar
  5. Johnson, S. C. Hierarchical clustering schemes.Psychometrika, 1967,32, 241–245.Google Scholar
  6. Rohlf, F. J. Methods of comparing classifications.Annual Review of Ecology and Systematics, 1974,5, 101–113.Google Scholar
  7. Rohlf, F. J., Kishpaugh, J. & Kirk, D.NT-SYS: Numerical taxonomy system of multivariate statistical programs. Stony Brook: State University of New York, 1974. (Procedure TAXON was written 15 October 1970, and the procedure SIMITU was written 17 October 1970.)Google Scholar
  8. Sneath, P. H. A. & Sokal, R. R.Numerical taxonomy. San Francisco: Freeman, 1973.Google Scholar
  9. Wishart, D.CLUSTAN IB. London: London University Computing Service, 1972. (Version IB of the procedures CORREL and HIERAR were used.)Google Scholar

Copyright information

© Psychometric Society 1977

Authors and Affiliations

  • Roger Blashfield
    • 1
  1. 1.Pennsylvania State UniversityUSA

Personalised recommendations