melanom                 package:ISwR                 R Documentation

_S_u_r_v_i_v_a_l _a_f_t_e_r _m_a_l_i_g_n_a_n_t _m_e_l_a_n_o_m_a

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

     The 'melanom' data frame has 205 rows and 7 columns. It contains
     data relating to survival of patients after operation for
     malignant melanoma collected at Odense University Hospital by K.T.
     Drzewiecki.

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

     This data frame contains the following columns:

     _n_o a numeric vector. Patient code.

     _s_t_a_t_u_s a numeric vector code. Survival status. 1: dead from
          melanoma, 2: alive, 3: dead from other cause.

     _d_a_y_s a numeric vector. Observation time.

     _u_l_c a numeric vector code. Ulceration, 1: present, 2: absent.

     _t_h_i_c_k a numeric vector. Tumor thickness (1/100 mm).

     _s_e_x a numeric vector code. 1: female, 2: male.

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

     P.K. Andersen, {\O}. Borgan, R.D. Gill, N. Keiding (1991),
     _Statistical Models Based on  Counting Processes_, Appendix 1,
     Springer-Verlag.

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

     data(melanom)
     require(survival)
     plot(survfit(Surv(days,status==1),data=melanom))

