speedo                package:faraway                R Documentation

_S_p_e_e_d_o_m_e_t_e_r _c_a_b_l_e _s_h_r_i_n_k_a_g_e

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

     Speedometer cables can be noisy because of shrinkage in the
     plastic casing material. An experiment was conducted to find out
     what caused shrinkage by screening a large number of factors.  The
     engineers started with 15 different factors.

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

     data(speedo)

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

     The dataset contains the following variables: (variables a-o are 2
     level factors, coded "+" and "-" where "+" indicates a higher
     value where appropriate)

     '_a' liner outer diameter

     '_b' liner die

     '_c' liner material

     '_d' liner line speed

     '_e' wire braid type

     '_f' braiding tension

     '_g' wire diameter

     '_h' liner tension

     '_i' liner temperature

     '_j' coating material

     '_k' coating die type

     '_l' melt temperature

     '_m' screen pack

     '_n' cooling method

     '_o' line speed

     '_y' percentage shrinkage per specimen

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

     G. P. Box and S. Bisgaard and C. Fung (1988) "An explanation and
     critque of Taguchi's contributions to quality engineering",
     Quality and reliability engineering international, 4, 123-131

