grid.grill package:grid R Documentation _D_r_a_w _a _G_r_i_l_l _D_e_s_c_r_i_p_t_i_o_n: This function draws a grill within a Grid viewport. _U_s_a_g_e: grid.grill(h = unit(seq(0.25, 0.75, 0.25), "npc"), v = unit(seq(0.25, 0.75, 0.25), "npc"), default.units = "npc", gp=gpar(col = "grey"), vp = NULL) _A_r_g_u_m_e_n_t_s: h: A numeric vector or unit object indicating the horizontal location of the vertical grill lines. v: A numeric vector or unit object indicating the vertical location of the horizontal grill lines. default.units: A string indicating the default units to use if 'h' or 'v' are only given as numeric vectors. gp: An object of class 'gpar', typically the output from a call to the function 'gpar'. This is basically a list of graphical parameter settings. vp: A Grid viewport object. _V_a_l_u_e: None. _A_u_t_h_o_r(_s): Paul Murrell _S_e_e _A_l_s_o: Grid, 'viewport'.