wool                  package:alr3                  R Documentation

_W_o_o_l _d_a_t_a

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

     This is a three-factor experiment with each factor at three
     levels, for a total of 27 runs.  Samples of worsted yarn were with
     different levels of the three factors were given a cyclic load
     until the sample failed.  The goal is to understand how cycles to
     failure depends on the factors.

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

     This data frame contains the following columns:

     _L_e_n length of specimen (250, 300, 350 mm)

     _A_m_p amplitude of loading cycle (8, 9, 10 min)

     _L_o_a_d load (40, 45, 50g)

     _C_y_c_l_e_s number of cycles until failure

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

     Box, G. E. P. and Cox, D. R. (1964).  An analysis of
     transformations (with discussion).  _J. Royal Statist. Soc._, B26,
     211-46.

_R_e_f_e_r_e_n_c_e_s:

     Weisberg, S. (2005). _Applied Linear Regression_, 3rd edition. New
     York: Wiley, Section 6.3.

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

     data(wool)

