collapse package:nlme R Documentation _C_o_l_l_a_p_s_e _A_c_c_o_r_d_i_n_g _t_o _G_r_o_u_p_s _D_e_s_c_r_i_p_t_i_o_n: This function is generic; method functions can be written to handle specific classes of objects. Currently, only a 'groupedData' method is available. _U_s_a_g_e: collapse(object, ...) _A_r_g_u_m_e_n_t_s: object: an object to be collapsed, usually a data frame. ...: some methods for the generic may require additional arguments. _V_a_l_u_e: will depend on the method function used; see the appropriate documentation. _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: 'collapse.groupedData' _E_x_a_m_p_l_e_s: ## see the method function documentation