melanom              package:ISwR              R Documentation(utf8)

_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 the survival of patients after an operation for
     malignant melanoma, collected at Odense University Hospital by
     K.T. Drzewiecki.

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

     melanom

_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, and N. Keiding (1991),
     _Statistical Models Based on  Counting Processes_, Appendix 1,
     Springer-Verlag.

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

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

