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The adegraphics package is a complete reimplementation of the graphical functionalities of the ade4 package [@Dray2007]. The package has been initially designed to improve the representation of the outputs of multivariate analyses performed with ade4 but as its graphical functionalities are very general, they can be used for other purposes.

The adegraphics package provides a flexible environment to produce, edit and manipulate graphs. We adopted an object oriented approach (a graph is an object) using S4 classes and methods and used the visualization system provided by the lattice [@Sarkar2008] and grid [@Murrell2005] packages. In adegraphics, graphs are R objects that can be edited, stored, combined, saved, removed, etc.

Note that we tried to facilitate the handling of adegraphics by ade4 users. Hence, the name of functions and parameters has been preserved in many cases. The main changes are listed in the appendix of this vignette so that it should be quite easy to use adegraphics. However, several new functionalities (graphical parameters, creation and manipulation of graphical objects, etc.) are now available and detailed in this vignette.

The adelist mailing list can be used to send questions and/or comments on adegraphics (see https://listes.univ-lyon1.fr/sympa/info/adelist)

• An overview of object classes
• Simple graph (ADEg object)
  • User functions
  • Arguments
  • Slots and Methods
• Multiple graph (ADEgS object)
  • Slots and Methods
  • Creating an ADEgS object by hand
    • The basic methods for superposition, juxtaposition and insertion
    • The ADEgS function
  • Automatic collections
    • Partitioning the data (facets)
    • Multiple axes
    • Multiple score
    • Multiple variable
    • Outputs of the ade4 package
• Customizing a graph
  • Parameters in trellis.par
  • Parameters in adeg.par
    • Global assignment
    • Local assignment
  • Parameters in g.args
  • Parameters applied on a ADEgS
• Using adegraphics functions in your package
• Examples
  • Labels customization
  • Ellipses, stars and convex hulls
  • Values and legend
  • 1-D plot
  • Maps and neighbor graphs
  • Ternary plots
• Appendix
• References