list2Matrix             package:Rintact             R Documentation

_A _f_u_n_c_t_i_o_n _t_h_a_t _t_a_k_e_s _a _n_a_m_e_d _l_i_s_t _r_e_p_r_e_s_e_n_t_a_t_i_o_n _o_f _a _b_i_p_a_r_t_i_t_e _g_r_a_p_h 
_a_n_d _t_r_a_n_s_f_o_r_m_s _i_t _i_n_t_o _a _m_a_t_r_i_x _r_e_p_r_e_s_e_n_t_a_t_i_o_n.

_D_e_s_c_r_i_p_t_i_o_n:

     The 'list2Matrix' takes in a named list (representing a bipartite
     graph) and transforms into into a (0,1)-matrix representation. The
     names of the list index the  columns and the union of the elements
     of the list index the row. The (i,j) position of the matrix is 1
     if element i is in the list element indexed by name j, and it  is
     0 otherwise.

_U_s_a_g_e:

     list2Matrix(namedList)

_A_r_g_u_m_e_n_t_s:

namedList: A named list. The list represents a bipartite graph.

_V_a_l_u_e:

     A (0,1)-matrix representation of the bipartite graph.

_A_u_t_h_o_r(_s):

     T Chiang

_R_e_f_e_r_e_n_c_e_s:

_E_x_a_m_p_l_e_s:

     eg = list(first = letters[1:5], second = letters[4:8])
     list2Matrix(eg)

