cane                  package: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
     plantations 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 diseased 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 Methods and
     Their Application. Cambridge University Press.

