「Ordered character」の版間の差分
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*[[Kitching_Forey_Humphries_Williams_1998|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.]] | *[[Kitching_Forey_Humphries_Williams_1998|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.]] | ||
| + | * [[Simpson_2006|Simpson, M. G. 2006. Plant Systematics. -xi + 590 pp. Elsevier Academic Press, Oxford.]] | ||
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2017年4月5日 (水) 08:21時点における最新版
ordered character
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Definition
Glossary of "Cladistics (2nd ed.)" by Kitching et al. (1998)
- A multistate character of which the order has been determined. Transformation between any two adjacent states costs the same number of steps (usually one, see direction), but transformation between two non-adjacent states costs the sum of the steps betweentheir implied adjacent states. For example, in the ordered character, 0 <-> 1 <-> 2, the transformations 0 <-> 1 and 1 <-> 2 each cost the same number of steps but the transformation 0 <-> 2 costs twice as many (i.e. transformation proceeds as if via state 1). Wagner optimization uses ordered characters. Cf. unordered.
Glossary of Plant Systematics (1st ed.) by Simpson (2006)
- Referring to a transformation series in which the character states occur in a predetermined sequence.
文献（引用）
- 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.
- Simpson, M. G. 2006. Plant Systematics. -xi + 590 pp. Elsevier Academic Press, Oxford.
