Undirected character
提供: 広島大学デジタル博物館
ナビゲーションに移動検索に移動undirected character
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Definition
Glossary of "Cladistics (2nd ed.)" by Kitching et al. (1998)
- A character in which the transformations in one direction cost the same number of steps as the transformations in the opposite direction. For example, in the undirected character, 0 <-> 1, the transformations 0 -> 1 and 1 -> 0 each cost the same number of steps. Wagner optimization and Fitch optimization use undirected characters. Cf. directed.
