The ade4 package: Implementing the duality diagram for ecologists
The ade4 package: Implementing the duality diagram for ecologists
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DOI：
10.18637/jss.v022.i04
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发表时间：
2007-09-01
影响因子：
5.8
通讯作者：
Dufour, Anne-Beatrice
中科院分区：
文献类型：
--
作者：
Dray, Stephane;Dufour, Anne-Beatrice
多元分析是众所周知的，并广泛用于识别和理解生态群落的结构。用于R统计环境的ade4包提出了大量的多变量方法。其实施遵循传统的法国学校的“分析des Donnees”，是基于使用的对偶图。我们提出了对偶图的理论，并讨论了它在ade4中的实现。给出了类和主要函数。最后给出一个例子来说明ade4哲学。
Multivariate analyses are well known and widely used to identify and understand structures of ecological communities. The ade4 package for the R statistical environment proposes a great number of multivariate methods. Its implementation follows the tradition of the French school of "Analyse des Donnees" and is based on the use of the duality diagram. We present the theory of the duality diagram and discuss its implementation in ade4. Classes and main functions are presented. An example is given to illustrate the ade4 philosophy.