cocitation              package:igraph              R Documentation

_C_o_c_i_t_a_t_i_o_n _c_o_u_p_l_i_n_g

_D_e_s_c_r_i_p_t_i_o_n:

     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.

_U_s_a_g_e:

     cocitation(graph, v=V(graph))
     bibcoupling(graph, v=V(graph))

_A_r_g_u_m_e_n_t_s:

   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.

_D_e_t_a_i_l_s:

     '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.

_V_a_l_u_e:

     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'.

_A_u_t_h_o_r(_s):

     Gabor Csardi csardi@rmki.kfki.hu

_E_x_a_m_p_l_e_s:

     g <- graph.ring(10)
     cocitation(g)
     bibcoupling(g)

