The DISTANCE Procedure

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Gower, J. C. and Legendre, P. (1986), “Metric and Euclidean Properties of Dissimilarity Coefficients,” Journal of Classification, 3, 5–48.

Hand, D. J., Daly, F., Lunn, A. D., McConway, K. J., and Ostrowski, E. (1994), A Handbook of Small Data Sets, London: Chapman & Hall.

Sneath, P. H. A. and Sokal, R. R. (1973), Numerical Taxonomy, San Francisco: Freeman.