E. C. Pielou may be one of the first who wrote about this. Check her book 'Mathematical ecology' (J. Wiley, 1977). Best wishes, Jari Oksanen -----Original Message----- From: Paulo In?cio de Knegt L?pez de Prado Sent: 04.07.2009, 17:35 To: r-sig-ecology at r-project.org Subject: [R-sig-eco] Neighbor sampling is random? Dear r-eco-list users, This is not an R-question, but a statistical one, but maybe somebody can help. I had read that to set random points over an area and picking the nearest plant is not random sample, but I could not recover this article. Is that correct? Could you provide some basic reference? Thanks a lot Paulo -- Paulo In?cio de Knegt L?pez de Prado Depto. de Ecologia - Instituto de Bioci?ncias - USP Rua do Mat?o, travessa 14, n? 321 Cid. Universit?ria, S?o Paulo - SP CEP 05508-900 11-30917599 (sala) 11-30917600 (Secretaria) _______________________________________________ R-sig-ecology mailing list R-sig-ecology at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
Neighbor sampling is random?
2 messages · Jari Oksanen, Salvador Sánchez-Colón
Quite right, she did in there. Just for Paulo's file in case he does not manage to find that old (but most enlightening) book: That sampling scheme leads to an over-representation of isolated plants; that is, those plants have a higher probability of being included in the sample. Muito pracer, Salvador Salvador S?nchez-Col?n, Consultor?a Ambiental y Estad?stica, Cerrada de Cort?s 43, Colonia Campestre Tlacopac, San ?ngel, 01049 M?xico, DF tel: (+52-55)5662-4644 mobile: (+52-1-55)3200-8559 e-mail: salvadorsanchezcolon at prodigy.net.mx Jari Oksanen escribi?:
E. C. Pielou may be one of the first who wrote about this. Check her book 'Mathematical ecology' (J. Wiley, 1977). Best wishes, Jari Oksanen -----Original Message----- From: Paulo In?cio de Knegt L?pez de Prado Sent: 04.07.2009, 17:35 To: r-sig-ecology at r-project.org Subject: [R-sig-eco] Neighbor sampling is random? Dear r-eco-list users, This is not an R-question, but a statistical one, but maybe somebody can help. I had read that to set random points over an area and picking the nearest plant is not random sample, but I could not recover this article. Is that correct? Could you provide some basic reference? Thanks a lot Paulo -- Paulo In?cio de Knegt L?pez de Prado Depto. de Ecologia - Instituto de Bioci?ncias - USP Rua do Mat?o, travessa 14, n? 321 Cid. Universit?ria, S?o Paulo - SP CEP 05508-900 11-30917599 (sala) 11-30917600 (Secretaria)
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