Use this if you are using igraph from R
Two vertices are cocited if there is another vertex citing both of them.
cocitation
simply counts how many types two vertices are cocited. The
bibliographic coupling of two vertices is the number of other vertices they
both cite, bibcoupling
calculates this.
cocitation(graph, v = V(graph))
graph |
The graph object to analyze |
v |
Vertex sequence or numeric vector, the vertex ids for which the cocitation or bibliographic coupling values we want to calculate. The default is all vertices. |
cocitation
calculates the cocitation counts for the vertices in the
v
argument and all vertices in the graph.
bibcoupling
calculates the bibliographic coupling for vertices in
v
and all vertices in the graph.
Calculating the cocitation or bibliographic coupling for only one vertex costs the same amount of computation as for all vertices. This might change in the future.
A numeric matrix with length(v)
lines and
vcount(graph)
columns. Element (i,j)
contains the cocitation
or bibliographic coupling for vertices v[i]
and j
.
Gabor Csardi csardi.gabor@gmail.com
g <- make_ring(10) cocitation(g) bibcoupling(g)