

VA(MASS)                                     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 _t_r_i_a_l_.

_D_e_s_c_r_i_p_t_i_o_n_:

     Veteran's Administration lung cancer trial from
     Kalbfleisch & Prentice.  A data frame.

_A_r_g_u_m_e_n_t_s_:

   stime: survival or follow-up time in days.

  status: dead or censored.

   treat: standard or test

     age: patient's age in years

    Karn: Karnofsky score of patient's performance on a
          scale of 0 to 100.

diag.time: times since diagnosis in months at entry to
          trial.

    cell: one of four cell types.

   prior: prior therapy?

_D_e_t_a_i_l_s_:

     The components are:

_S_o_u_r_c_e_:

     Kalbfleisch, J.D. and Prentice R.L. (1980) The Statis-
     tical Analysis of Failure Time Data.

