veteran package:survival R Documentation _V_e_t_e_r_a_n_s' _A_d_m_i_n_i_s_t_r_a_t_i_o_n _L_u_n_g _C_a_n_c_e_r _s_t_u_d_y _D_e_s_c_r_i_p_t_i_o_n: Randomised trial of two treatment regimens for lung cancer. This is a standard survival analysis data set _U_s_a_g_e: data(veteran) _F_o_r_m_a_t: trt: 1=standard 2=test celltype: 1=squamous, 2=smallcell, 3=adeno, 4=large time: survival time status: censoring status karno: Karnofsky performance score (100=good) diagtime: months from diagnosis to randomisation age: in years prior: prior therapy 0=no, 1=yes _S_o_u_r_c_e: Kalbfleisch and Prentice "The Statistical Analysis of Failure Time Data"