ade4 is a software developed in the Biometry and Evolutionary Biology Lab (UMR 5558) - University Lyon 1 for the Data Analysis of Ecological and Environmental data in the framework of Euclidean Exploratory methods, hence the name ade4.

ade4 is a package for the R software since 2002. It contains functions for exploratory multivariate data analysis and graphical display, many numerical data sets and bibliographic references. Simple one-table methods are described in Chessel et al. (2004). Two-table and K-table methods are described in Dray et al. (2007). The theory of the duality diagram and its implementation in ade4 are discussed in Dray et Dufour (2007).

A book in the Springer Series in Statistics collection, “Multivariate Analysis of Ecological Data with ade4” presents the package. The examples and the graphs in this book can be reproduced online here.

The ade4shiny dashboard allows you to use the basic functions of the ade4 package online, directly in your browser: no need to install R and the necessary packages on your computer. ade4shiny