lesmis
is an igraph
object. Its vertices are
the characters of the novel and an edge indicates that the two characters appear
together in the same chapter of the novel, at least once. Vertex attributes for
this graph are id, a vertex number between 1 and 77, and
label, the character's name. The edge attribute value gives
the number of co-appearances between the two characters afferent to the edge
(the igraph
can thus be made a weighted graph using this
attribute). Finally, a graph attribute layout is used to provide a
layout (generated with the igraph
function
layout_with_fr
)
for visualizing the graph.
dissim.lesmis
is a dissimilarity matrix computed with the function
shortest_paths
and containing the length of the shortest
paths between pairs of nodes.