GNU R extension to r-cran-ggplot2

 The R package 'ggplot2' is a plotting system based on the grammar of
 graphics. 'GGally' extends 'ggplot2' by adding several functions to
 reduce the complexity of combining geometric objects with transformed
 data. Some of these functions include a pairwise plot matrix, a two
 group pairwise plot matrix, a parallel coordinates plot, a survival
 plot, and several functions to plot networks.