my new package extracat is now available from CRAN.
It provides extensions to mosaicplots and parallel coordinates plots for the visualization of categorical data.
The new member of the mosaicplot family is called rmb-plot and it visualizes the factorization of the absolute frequencies in a contingency table into conditional relative frequencies and weights. It is possible to choose between the barcharts version (which is a bit similar to multiple barcharts) and the generalized spineplot version. The rmb function is also available in an interactive version callled irmb which is based on the package iWidgets ( http://www.rforge.net ).
Parallel coordinates plots are made fit for categorical data with the function cpcp, which is based on the ipcp function from package iplots. To reflect the categorical structure of the data, point sequences and orderings are applied to the categories of different variables. It is possible to use interactive highlighting and linking with other iplots. Furthermore the cpcp function also accepts continuous data.
I hope, everyone who is interested will enjoy my first R-package !
University of Augsburg
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