pistonrings              package:HSAUR              R Documentation

_P_i_s_t_o_n _R_i_n_g_s _F_a_i_l_u_r_e_s

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

     Number of failures of piston rings in three legs of four
     steam-driven compressors.

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

     data("pistonrings")

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

     A two-way classification, see 'table'.

_D_e_t_a_i_l_s:

     The data are given in form of a 'table'.  The table gives the
     number of piston-ring failures in each of three legs of four
     steam-driven compressors located in the same building. The
     compressors have identical design and are oriented in the same
     way. The question of interest is whether the two classification
     variables (compressor and leg) are independent.

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

     S. J. Haberman (1973), The analysis of residuals in
     cross-classificed tables. _Biometrics_ *29*, 205-220.

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

       
       data("pistonrings", package = "HSAUR")
       mosaicplot(pistonrings)

