ships                  package:MASS                  R Documentation

_S_h_i_p_s _D_a_m_a_g_e _D_a_t_a

_D_e_s_c_r_i_p_t_i_o_n:

     Data frame giving the number of damage incidents and aggregate
     months of service by ship type, year of construction, and period
     of operation.

_U_s_a_g_e:

     ships

_F_o_r_m_a_t:


     '_t_y_p_e' type: '"A"' to '"E"'.

     '_y_e_a_r' year of construction: 1960-64, 65-69, 70-74, 75-79 (coded
          as '"60"', '"65"', '"70"', '"75"').

     '_p_e_r_i_o_d' period of operation : 1960-74, 75-79.

     '_s_e_r_v_i_c_e' aggregate months of service.

     '_i_n_c_i_d_e_n_t_s' number of damage incidents.


_S_o_u_r_c_e:

     P. McCullagh and J. A. Nelder, (1983), _Generalized Linear
     Models._ Chapman & Hall, section 6.3.2, page 137

