

cane(boot)                                   R Documentation

_S_u_g_a_r_-_c_a_n_e _D_i_s_e_a_s_e _D_a_t_a

_A_r_g_u_m_e_n_t_s_:

       n: The total number of shoots in each plot.

       r: The number of diseased shoots.

       x: The number of pieces of the stems, out of 50,
          planted in each plot.

     var: A factor indicating the variety of sugar-cane in
          each plot.

   block: A factor for the blocks.

_S_U_M_M_A_R_Y_:

     The `cane' data frame has 180 rows and 5 columns.

     The data frame represents a randomized block design
     with 45 varieties of sugar-cane and 4 blocks.  The aim
     of the experiment was to classify the varieties into
     resistant, intermediate and susceptible to a disease
     called "coal of sugar-cane" (carvao da cana-de-acucar).
     This is a disease that is common in sugar-cane planta-
     tions in certain areas of Brazil.

     For each plot, fifty pieces of sugar-cane stem were put
     in a solution containing the disease agent and then
     some were planted in the plot.  After a fixed period of
     time, the total number of shoots and the number of dis-
     eased shoots were recorded.

_D_A_T_A _D_E_S_C_R_I_P_T_I_O_N_:

     This data frame contains the following columns:

_S_O_U_R_C_E_:

     The data were kindly supplied by Dr. C.G.B. Demetrio of
     Escola Superior de Agricultura, Universidade de Sao
     Paolo, Brazil.

_O_T_H_E_R _R_E_F_E_R_E_N_C_E_S_:

     Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Meth-
     ods and Their Application. Cambridge University Press.

