_P_o_s_t_S_c_r_i_p_t _G_r_a_p_h_i_c_s
	
	     postscript(file="PS", landscape=TRUE, width, height)
	
	_A_r_g_u_m_e_n_t_s:
	
	        file : the name of a file to print to, it must be a
	               quoted string.
	
	   landscape : the orientation of the printed image, a logi-
	               cal.
	
	width,height : the width, and height of the graphics region
	               in inches.  The default is to use the entire
	               page.
	
	_D_e_s_c_r_i_p_t_i_o_n:
	
	     The file file is opened and the PostScript commands
	     needed to plot any graphics requested are stored in
	     that file.  This file can then be printed on a suitable
	     device to obtain hard copy.
	
	_S_e_e _A_l_s_o:
	
	     x11, macintosh, device.
	
	_E_x_a_m_p_l_e_s:
	
	     # open the file "foo" for graphics output
	     postscript("foo")
	
	     # produce the desired graph(s)
	     plot(x,y)