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	Provedor de dados 16 (1) Autor Jenner, Ronald A. (1) Palavra-chave Absence/presence coding (1) Boolean logic (1) Character coding (1) Character state identity (1) Metazoa (1) Metazoan cladistics (1) Nonadditive binary coding (1) Mais... Tipo do documento Article / Letter to the editor (1) Ano 2002 (1) País Netherlands (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Boolean logic and character state identity: pitfalls of character coding in metazoan cladistics 16 Jenner, Ronald A.. A critical study of the morphological data sets used for the most recent analyses of metazoan cladistics exposes a rather cavalier attitude towards character coding. Binary absence/presence coding is ubiquitous, but without any explicit justification. This uncompromising application of Boolean logic in character coding is remarkable since several recent investigations have nominated absence/presence coding as the most problematic coding method available for standard cladistic analysis. Moreover, the prevalence of unspecified “absence” character states in the published data sets introduces a discrepancy between the theoretical foundations of phylogenetic parsimony and current practices in metazoan cladistics. Because phylogenetic parsimony assumes... Tipo: Article / Letter to the editor Palavras-chave: Metazoan cladistics; Metazoa; Character coding; Character state identity; Boolean logic; Nonadditive binary coding; Absence/presence coding. Ano: 2002 URL: http://www.repository.naturalis.nl/record/534396 Registros recuperados: 1 Primeira ... 1 ... Última

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