

rats(survival5)                              R Documentation

_R_a_t _d_a_t_a _f_r_o_m _s_u_r_v_i_v_a_l_5

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

     48 rats were injected with a carcinogen, and then ran-
     domized to either drug or placebo.  The number of
     tumors ranges from 0 to 13; all rats were censored at 6
     months after randomization.

_U_s_a_g_e_:

     data(rats)

_F_o_r_m_a_t_:

     rat:             id
      rx:             treatment,(1=drug, 0=control)
      observation:    within rat
      start:          entry time
      stop:           exit time
      status:         event status

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

     Gail, Sautner and Brown, Biometrics 36, 255-66, 1980

