A polychotomy (päl′i kät′ə mē; plural polychotomies) is a division or separation into many parts or classes. Polychotomy is a generalization of dichotomy, which is a polychotomy of exactly two parts. In evolutionary biology, the term polychotomy can also be considered a historically based misspelling of polytomy.[1]

See also


  1. ^ Weiss, David J. (1995). “Polychtomous or Polytomous?,” Applied Psychological Measurement, Vol. 19, No. 1, p. 4

External links

Examples of usage

  • Another Approach to Polychotomous Classification
  • Polyclass: polychotomous regression and multiple classification
  • The Development of a Hierarchical Polychotomous ADL-IADL Scale for Noninstitutionalized Elders
  • Probabilistic Forecasting - A Primer
  • Structured polychotomous machine diagnosis of multiple cancer types using gene expression