vcd extensions and additions
Description
Provides additional data sets, methods and documentation to complement the vcd package for Visualizing Categorical Data
and the gnm package for Generalized Nonlinear Models.
In particular, vcdExtra extends mosaic, assoc and sieve plots from vcd to handle glm() and gnm() models and
adds a 3D version in mosaic3d. Additionally, methods are provided for comparing and visualizing lists of
glm and loglm objects.