update.modelStruct package:nlme R Documentation _U_p_d_a_t_e _a _m_o_d_e_l_S_t_r_u_c_t _O_b_j_e_c_t _D_e_s_c_r_i_p_t_i_o_n: This method function updates each element of 'object', allowing the access to 'data'. _U_s_a_g_e: ## S3 method for class 'modelStruct': update(object, data, ...) _A_r_g_u_m_e_n_t_s: object: an object inheriting from class 'modelStruct', representing a list of model components, such as 'corStruct' and 'varFunc' objects. data: a data frame in which to evaluate the variables needed for updating the elements of 'object'. ...: some methods for this generic require additional arguments. None are used in this method. _V_a_l_u_e: an object similar to 'object' (same class, length, and names), but with updated elements. _N_o_t_e: This method function is primarily used within model fitting functions, such as 'lme' and 'gls', that allow model components such as variance functions. _A_u_t_h_o_r(_s): Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu _S_e_e _A_l_s_o: 'reStruct'