

sugar(Rnotes)                                R Documentation

_F_i_s_h_e_r_'_s _S_u_g_a_r _B_e_e_t _D_a_t_a

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

     A classical 3 by 2-cubed randomized block experiment in
     four blocks of size 24.  The response is the total
     weight of sugarbeet roots off the plot, but this is
     accompanied by the number of roots measured.  The sug-
     gestion is that number of roots should be a covariate
     to allow for varying plot size.

_V_a_l_u_e_:

     The factors are Variety (3 levels, a, b and c), and N,
     P and K each at 2 levels, present or absent.

     The data frame contains the following components:

   Block: Block number, I, II, III or IV

       V: Variety

       N: Nitrogen present/absent

       P: Phosphorous present/absent

       K: Potassium present/absent

      No: Number of roots

      Wt: Weight

_C_A_T_E_G_O_R_Y_:

     Analysis of variance and covariance.

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

     R. A. Fisher, "Design of Experiments"

