gastric             package:surv2sample             R Documentation

_G_a_s_t_r_i_c _C_a_n_c_e_r _D_a_t_a

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

     Survival data from a trial comparing chemotherapy versus combined
     chemotherapy plus radiotherapy in the treatment of gastric cancer.

_U_s_a_g_e:

     data(gastric)

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

     A data frame with 90 observations (45 in each treatment group)
     with the following 3 variables:

     '_t_i_m_e' survival or censoring time, in days

     '_e_v_e_n_t' 1 = death, 0 = censoring

     '_t_r_e_a_t_m_e_n_t' 1 = chemotherapy, 2 = chemotherapy plus radiotherapy

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

     Stablein, D. M. and Koutrouvelis, I. A. (1985) A two-sample test
     sensitive to crossing hazards in uncensored and singly censored
     data. _Biometrics_ *41*, 643-652. (Page 649)

_E_x_a_m_p_l_e_s:

     data(gastric)
     plot(survfit(Surv(time, event) ~ treatment, data = gastric))

