grid.pretty package:grid R Documentation _G_e_n_e_r_a_t_e _a _S_e_n_s_i_b_l_e _S_e_t _o_f _B_r_e_a_k_p_o_i_n_t_s _D_e_s_c_r_i_p_t_i_o_n: Produces a pretty set of breakpoints within the range given. _U_s_a_g_e: grid.pretty(range) _A_r_g_u_m_e_n_t_s: range: A numeric vector _V_a_l_u_e: A numeric vector of breakpoints. _A_u_t_h_o_r(_s): Paul Murrell