

all.names {base}                             R Documentation

_F_i_n_d _A_l_l _N_a_m_e_s _i_n _a_n _E_x_p_r_e_s_s_i_o_n

_U_s_a_g_e_:

     all.names(expr, functions = T,
             max.names = 200, unique = F)
     all.vars(expr, functions = F,
             max.names = 200, unique = T)

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

    expr: an expression or call from which the names are to
          be extracted.

functions: a logical value indicating whether function names
          should be included in the result.

max.names: the maximum number of names to be returned.

  unique: a logical value which indicates whether duplicate
          names should be removed from the value.

_V_a_l_u_e_:

     These functions return a character vector containing
     all the names which occur in an expression or call.
     These functions differ only in the default values for
     their arguments.

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

     all.names(expression(sin(x+y)))
     all.vars(expression(sin(x+y)))

