Two vertices are cocited if there is another vertex citing
both of them.
cocitation siply 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=igraph.vs.all(graph)) bibcoupling(graph, v=igraph.vs.all(graph))
- The graph object to analyze
- 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
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
(i,j)contains the cocitation or bibliographic coupling for vertices
g <- graph.ring(10) cocitation(g) bibcoupling(g)