_O_r_d_i_n_a_t_e_s _f_o_r _P_r_o_b_a_b_i_l_i_t_y _P_l_o_t_t_i_n_g
	
	     ppoints(n)
	
	_A_r_g_u_m_e_n_t_s:
	
	           n : either the number of points generate or a
	               vector of observations.
	
	_D_e_s_c_r_i_p_t_i_o_n:
	
	     This generates the sequence of points (1:m - 0.5)/m
	     where m is either n, if length(n)==1, or length(n).  It
	     is used in qqplot, qqnorm to generate the set of proba-
	     bilities at which to evaluate the inverse distribution.
	
	_S_e_e _A_l_s_o:
	
	     qqplot, qqnorm.