

rev {base}                                   R Documentation

_R_e_v_e_r_s_e _a _V_e_c_t_o_r_'_s _E_l_e_m_e_n_t_s

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

     `rev' provides a reversed version of its argument.  It
     can be used in combination with `sort' to obtain vec-
     tors sorted into descending order.

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

     rev(x)

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

     `seq', `sort'.

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

     x <- c(1:5,5:3)
     # sort into descending order
     rev(sort(x))
     all(rev(1:7) == 7:1)#- don't need `rev' here

