properties             package:relations             R Documentation

_R_e_l_a_t_i_o_n _P_r_o_p_e_r_t_i_e_s

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

     Retrieve relation properties.

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

     relation_properties(x)
     relation_property(x, which)

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

       x: A relation.

   which: Property name (character string).

_D_e_t_a_i_l_s:

     These functions are used for the _extrinsic_ properties of
     relations. Others can be retrieved using the predicate functions.

_S_e_e _A_l_s_o:

     'relation' and, e.g., 'relation_is_binary' for all predicate
     functions defined on relations.

_E_x_a_m_p_l_e_s:

     x <- as.relation(1 : 3)
     relation_properties(x)
     relation_property(x, "is_endorelation")

