Cefamandole package:nlme R Documentation _P_h_a_r_m_a_c_o_k_i_n_e_t_i_c_s _o_f _C_e_f_a_m_a_n_d_o_l_e _D_e_s_c_r_i_p_t_i_o_n: The 'Cefamandole' data frame has 84 rows and 3 columns. _F_o_r_m_a_t: This data frame contains the following columns: _S_u_b_j_e_c_t a factor giving the subject from which the sample was drawn. _T_i_m_e a numeric vector giving the time at which the sample was drawn (minutes post-injection). _c_o_n_c a numeric vector giving the observed plasma concentration of cefamandole (mcg/ml). _D_e_t_a_i_l_s: Davidian and Giltinan (1995, 1.1, p. 2) describe data obtained during a pilot study to investigate the pharmacokinetics of the drug cefamandole. Plasma concentrations of the drug were measured on six healthy volunteers at 14 time points following an intraveneous dose of 15 mg/kg body weight of cefamandole. _S_o_u_r_c_e: Pinheiro, J. C. and Bates, D. M. (2000), _Mixed-Effects Models in S and S-PLUS_, Springer, New York. (Appendix A.4) Davidian, M. and Giltinan, D. M. (1995), _Nonlinear Models for Repeated Measurement Data_, Chapman and Hall, London. _E_x_a_m_p_l_e_s: plot(Cefamandole) fm1 <- nlsList(SSbiexp, data = Cefamandole) summary(fm1)