Daftar Isi:1. Introduction 2. Useful R functions and data structures 3. The dudi class 4. Multivariate analysis graphs 5. Description of environmental variables structures 6. Description of species structures 7. Taking into account groups of sites 8. Description of species-environment relationships 9. Analysing changes in structures 10. Analysing changes in co-structures 11. Relating species traits to environment 12. Analysing spatial structures 13. Analysing phylogenetic structures 14. Analysing patterns of biodiversity 15. Euclidean viewpoint on statistics 16. Graphical user interface