usastates | R Documentation |
The nodes of Contiguous USA Graph represent the 49 contiguous states of the USA. Two nodes are connected if there exists at least one driveable road between the corresponding states.
usastates
A data frame with 107 observations and 2 columns.
http://www-cs-staff.stanford.edu/~uno/contiguous-usa.dat
D. E. Knuth (2008) The Art of Computer Programming, Volume 4, Fascicle 0: Introduction to Combinatorial Functions and Boolean Functions, p. 15. Upper Saddle River, NJ: Addison-Wesley.
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