_M_o_d_e_l _D_e_v_i_a_n_c_e
	
	     deviance(x, ...)
	
	_A_r_g_u_m_e_n_t_s:
	
	           x : an object for which the deviance is desired.
	
	_V_a_l_u_e:
	
	     The value of the deviance extracted from the object x.
	
	     This is a generic function which can be used to extract
	     deviances for fitted models.  Consult the individual
	     modeling functions for details details on how to use
	     this function
	
	     There is no default method for this function.
	
	_S_e_e _A_l_s_o:
	
	     df.residual, glm, lm.