[R] [R-pkgs] New version of "vcd" package

David Meyer david.meyer at wu-wien.ac.at
Tue Jul 5 00:30:39 CEST 2005

Dear useRs,

a completely revised version of the `vcd' ("Visualizing Categorical
Data") package is now
available from CRAN. This major revision includes the following

* grid-based:

The package is now entirely based on `grid', the new R graphics system,
thus exploiting
its unique functionalities. Powered by grid, it is now possible,
e.g., to simply compose complex plots of available components, or to
modify plot elements 
after they have been drawn.

* new flexible framework for mosaic and association plots

Extended mosaic and association plots are now integrated in a completely
generic framework for the visualization of contingency tables (so-called
The new design modularizes labeling, shading, spacing, and drawing of
legends, and
also the cells' content by the use of panel functions.

Powerful labeling functions offer much more flexibility for adding
(e.g., no restrictions on the number of dimensions, flexible positioning
of labels,
cell labeling, etc.)

The framework in particular includes many predefinded functions for the
creation of
residual-based shadings.

Convenience interfaces for various `flavors' of mosaic displays are
available, e.g., 
doubledecker plots, or visualizations of "loglm" objects with
residual-based shading.

* misc:

In addition, the package features several new data sets, and an
function for (conditional) independence of margins in a contingency

Happy drawing!

David, Achim, Kurt

Dr. David Meyer
Department of Information Systems and Operations

Vienna University of Economics and Business Administration
Augasse 2-6, A-1090 Wien, Austria, Europe
Fax: +43-1-313 36x746 
Tel: +43-1-313 36x4393
HP:  http://wi.wu-wien.ac.at/~meyer/

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