isDirected-methods           package:graph           R Documentation

_D_e_t_e_r_m_i_n_e _i_f _a _g_r_a_p_h _h_a_s _d_i_r_e_c_t_e_d _o_r _u_n_d_i_r_e_c_t_e_d _e_d_g_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     The edges of a 'graph-class' object are either directed or
     undirected.  This function returns 'TRUE' if the edges are
     directed and 'FALSE' otherwise.

_U_s_a_g_e:

     isDirected(object)

_A_r_g_u_m_e_n_t_s:

  object: A 'graph-class' instance

