LLOYD.DAT
Data file belonging to the GLM macro package of XploRe 3.0.
The data is from "Generalized Linear Models, 2nd Edition", McCullagh and 
Nelder (1989), Chapman and Hall, p. 204.
The data concern a type of damage caused by waves to the forward section of
certain cargo-carrying vessels.

The first column is an index for the ship type:
  1  =  A,  2 = B,  3 = C,  4 = D,  5  =  E
The second column is an index for the year of construction:
  1  =  1960-64,  2 = 1965-69,  3 = 1970-74,  4 = 1975-79
The third column is an index for the period of operation:
  1  =  1960-74,  2  =  1975-1979
The fourth column gives the aggregate months service.
The fifth column gives the number of damage incidents.