Dear List, I'm interested in calculating the intensive quadratic entropy (J) as a measure of phylogenetic diversity. This measure was proposed originally by Izsak & Papp (2000) and mentioned in Schweiger et al. (2008) as one of the best indices to be applied in spatial and temporal studies involving phylogenetic diversity. However, I'm not aware of any function available in R that calculates this metric. Does anyone could help me?
Thank you in advance, Diogo -- Atenciosamente, *Diogo Borges Provete* ============================== Biólogo Mestre em Biologia Animal (UNESP <http://www.ibilce.unesp.br>) Doutorando PPG Ecologia e Evolução <http://www.ecoevol.ufg.br> Laboratório de Ecologia de Insetos (sl. 222) Departamento de Ecologia <http://www.icb.ufg.br/pages/18570> Instituto de Ciências Biológicas <http://www.icb.ufg.br> - ICB 1 Universidade Federal de Goiás <http://www.ufg.br>, campus II Goiânia-GO 74001-970 Brazil Tel. Lab. +55 62 3521-1732 *Cel. +55 *62 8231-5775 * *: diogoprovete *Personal web page <http://diogoprovete.weebly.com>* Editor Herpetology Notes<http://www.herpetologynotes.seh-herpetology.org/index.html> NorthWestern Journal of Zoology<http://biozoojournals.3x.ro/nwjz/index.html> ============================== [[alternative HTML version deleted]]
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