A network of books about US politics published
around the time of the 2004 presidential election
and sold by the online bookseller Amazon.com. Edges between books represent frequent copurchasing of books by the same buyers.
Usage
data(book)
Arguments
Format
The data are in the format of igraph object.
IGRAPH U--- 105 441 --
+ attr: layout (g/n), randomout (g/n), id (v/n), label (v/c), value (v/c)