Glossary of "Cladistics (2nd ed.)" by Kitching et al. (1998)
- (1) The minimum number of character changes (steps) required on a cladogram to account for the data. (2) The summed fit of all characters to a cladogram. (3) The total of accommodated three-item statements plus twice the number of non-accommodated three-item statements on a cladogram.
- Kitching, I. J., Forey, P. L. Humphries, C. J. & Williams, D. M. 1998. Cladistics, 2nd ed.: the Theory and Practice of Parsimony Analysis. -xii + 228 pp. Oxford University Press, New York.