Reference

All functions
Koenigsberg	Bridges of Koenigsberg from Euler's times
UKfaculty	Friendship network of a UK university faculty
USairports	US airport network, 2010 December
enron	Enron Email Network
foodwebs	A collection of food webs
immuno	Immunoglobulin interaction network
karate	Zachary's karate club network
kite	Krackhardt's kite
lesmis_gml() lesmis_graphml() lesmis_pajek()	Example files
macaque	Visuotactile brain areas and connections
rfid	Hospital encounter network data
yeast	Yeast protein interaction network