The book Multivariate
Analysis of Ecological Data with `ade4`

is available on
Springer website.

This book is implemented around the mathematical concept of the
duality diagram and provides a unified framework for multivariate data
analysis. It offers a detailed presentation of the theoretical framework
of the **ade4** package and of its application to
real-world ecological problems. The organization of the book is based on
ecological questions, but these questions correspond to particular
classes of data analysis methods. The first chapters present both usual
and multiway data analysis methods. Further chapters are dedicated for
example to the analysis of spatial data, of phylogenetic structures, and
of biodiversity patterns. One chapter deals with multivariate data
analysis graphs.

In each chapter of the book, the basic mathematical definitions of
the methods and the outputs of the R functions available in
**ade4** are detailed in several boxes. The text of the
book itself can be read independently from these boxes. Thus this book
offers the opportunity to find information about the ecological
situation from which a question raises alongside the mathematical
properties of methods that can be applied to answer this question, as
well as the details of software outputs.

All the **R** code examples and the graphs in this book
can be **reproduced
online here**.