Indometh package:datasets R Documentation _P_h_a_r_m_a_c_o_k_i_n_e_t_i_c_s _o_f _I_n_d_o_m_e_t_h_i_c_i_n _D_e_s_c_r_i_p_t_i_o_n: The 'Indometh' data frame has 66 rows and 3 columns of data on the pharmacokinetics of indomethicin. _U_s_a_g_e: Indometh _F_o_r_m_a_t: This data frame contains the following columns: _S_u_b_j_e_c_t an ordered factor with containing the subject codes. The ordering is according to increasing maximum response. _t_i_m_e a numeric vector of times at which blood samples were drawn (hr). _c_o_n_c a numeric vector of plasma concentrations of indomethicin (mcg/ml). _D_e_t_a_i_l_s: Each of the six subjects were given an intravenous injection of indomethicin. _S_o_u_r_c_e: Kwan, Breault, Umbenhauer, McMahon and Duggan (1976), Kinetics of Indomethicin absorption, elimination, and enterohepatic circulation in man. _Journal of Pharmacokinetics and Biopharmaceutics_, *4*, 255-280. Davidian, M. and Giltinan, D. M. (1995) _Nonlinear Models for Repeated Measurement Data_, Chapman & Hall (section 5.2.4, p. 134) Pinheiro, J. C. and Bates, D. M. (2000) _Mixed-effects Models in S and S-PLUS_, Springer. _E_x_a_m_p_l_e_s: require(stats) fm1 <- nls(conc ~ SSbiexp(time, A1, lrc1, A2, lrc2), data = Indometh, subset = Subject == 1) summary(fm1)