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网络香农多样性指数;香农指数;歧异度 网络释义
方法2:基于区域混合样数据计算多样性指数,即汇总35个采样站位数据,计算得到Shannon-Wiener多样性指数“真值”Ytrue;对于每次再抽样,汇总抽取的所有采样站位数据,计算其多样性指数估算值每个样本含量下,有放回再抽样R次(R=1 000),计算得到R个多样性指数估算值。 1.4 再抽样模拟评估 相对估计误差(relative estimation ...
百度试题 题目香农-威纳指数(Shannon-WeinerIndex)是物种多样性调查最常用的方法,其计算公式为()(注:Pi为属于第i物种在全部采样中的比例,S是物种数,N是总个体数)。 A. B. C. D. 相关知识点: 试题来源: 解析 D 反馈 收藏
M. Cover, R. G. Gallager, J. L. Massey, and A. J. Viterbi, "Claude Elwood Shannon (1916- 2001)," Notices Amer. Math. Soc., vol. 49, no. 1, pp. 8-16, 2002.Shannon2001] Claude Elwood Shannon. 2001. ...
Harsha,Jitendra Kumar Meena,R Bhajan,... - 《International Journal of Basic & Applied Agricultural Research》 被引量: 0发表: 2015年 In the present investigation five diversity indices as Shannon-Weaver diversity index, Simpson's diversity index, Index of Dominance, Index of E.. Thirty one germ...
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R P An index of diversity and relation of certain concepts to diversity J Ecology 1967 48 392 404 5 Whittaker R H Evolution and Measurement of species diversity J T axon 1972 21 213 251 6 Hurlbert S H The Non concept of species diversity a critique and alternative parameter J Ecology ...
这是一篇Opinion。Shannon我们经常用到,而丰富度和均匀度我们也分别经常使用。但是本文的角度是我们往往容易忽略的:将由丰富度和均匀度组成的Shannon再次拆分为这两个指标并进行可视化。 摘要: Shannon是一种流行的alpha多样性度量,因为它同时估计了丰富度和均匀度。然而由于它的值取决于这两个参数,理论上有无限个丰富...
Reciprocal Index Berger-Parker Dominance Margalef Richness Menhinick Index Rényi Index Gini Coefficient Buzas and Gibson's Index Equitability Index Hill Numbers Whittaker Index Sørensen's Index Routledge beta-R Index Jaccard Index Mountford Index ...