_i_s_o_t_o_n: _I_s_o_t_o_n_i_c _R_e_g_r_e_s_s_i_o_n
	
	     isoton(x, wt)
	
	_A_r_g_u_m_e_n_t_s:
	
	            x:
	     a vector containing variable to be isotonized.
	
	           wt:
	     an optional vector of weights.
	
	          Value:
	
	          structure with the following components:
	
	            y:
	     the isotonized y vector.
	
	     Description:
	
	      Uses the monosm function by B. Brown (on StatLib).
	
	_E_x_a_m_p_l_e_s:
	
	     isoton(rnorm(10))