eurodist gives the road distances (in km) between 21
cities in Europe. The data are taken from a table in The
UScitiesD gives “straight line” distances between 10
cities in the US.
dist objects based on 21 and 10 objects, respectively.
(You must have the stats package loaded to have the methods for this
kind of object available).
Crystal, D. Ed. (1990) The Cambridge Encyclopaedia. Cambridge: Cambridge University Press,
The US cities distances were provided by Pierre Legendre.