• W. N. Venables
  • B. D. Ripley
Part of the Statistics and Computing book series (SCO)


Classification is an increasingly important application of modern methods in statistics. In the statistical literature the word is used in two distinct senses. The entry (Hartigan, 1982) in the original Encyclopedia of Statistical Sciences uses the sense of cluster analysis discussed in Chapter 13, and this is the main business of the International Federation of Classification Societies. Modern usage is leaning to the other meaning (Ripley, 1997) of allocating future cases to one of g classes. This is similar to discriminant analysis, but we are not interested in the differences between the classes per se. Medical diagnosis is an archetypal classification problem in the modern sense. (The older statistical literature sometimes refers to this as allocation.)


Posterior Probability Probability Forecast Learn Vector Quantization Quadratic Discriminant Analysis Error Cost 


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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • W. N. Venables
    • 1
  • B. D. Ripley
    • 2
  1. 1.Department of StatisticsUniversity of AdelaideAdelaideAustralia
  2. 2.University of OxfordOxfordEngland

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